Stewart Warner
Stewart Warner speedometers are on American made mopeds; 1980-83 AMF Roadmaster 140 and 1979-82 Murray models. They are mounted inside a Peterson PM404 bullet-type headlight. The anti-clockwise speedometer says Peterson Manufacturing Company. The odometer digits are vertical not horizontal.
Murray# price SW 3.1/3.1
1 313607 $55 speedometer head
2 313608 $39 speedometer cable
3 313612 $29 speedometer driver
2001 Avanti Autopower
Avanti cover set: none
Laura M48 magneto (right) and clutch (left) covers are the same.
Laura, Motobecane, Batavus, Badger, Solo, Angel, Speed Bird magneto covers all interchange, because they all have a 124 mm inner diameter. Here are some original examples:
1970’s Motobecane
’70’s Batavus (Laura M48)
early 1970’s Laura M48
1970’s Angel (TYM)
Solo type 254/255
Solo type 236/237
Tas BE-48 (Solo 236)
Here are some examples with the 1980 Motobecane replacement covers installed. For Solo and Tas engines a piece of wire is required, wrapped around engine and the replacement cover tabs.
Replacement cover
installed on Solo
Replacement cover
installed on Batavus
1980’s Motobecane engine cover
124mm ID, black, with tabs, price $19.0
Above, this one cover fits and replaces all of those covers above. It is exactly for a early 1980’s Motobecane. But it fits anything that takes a 124mm ID round cover. It is deep enough for stock mopeds. But it is not deep enough for some Motobecane CDI magnetos, or any that are much taller than stock. It comes with two rubber clips to hold it onto the metal “ears” on the engine case.
| Part # | # | ←pic#….Description | Price | Applications |
| ########### | ### | ################### | #### | ######################### |
| 000.821.5100 | 1 | footrest right | $25 | 1976-1979 Derbi SL, SLE |
| 000.821.5500 | 2 | footrest left | $35 | 1976-1979 Derbi SL, SLE |
| 000.821.5180 | chaingaurd left grey | N/A | 1976-1979 Derbi SL | |
| 000.823.0150 | 9 | engine cover right grey | $80 | 1976-1979 Derbi SL |
| 000.823.0200 | 10 | engine cover left grey | $70 | 1976-1979 Derbi SL |
| 000.872.2220 | chaingaurd right gold | 1976-1979 Derbi SLE | ||
| 000.871.5180 | chaingaurd left gold | 1976-1979 Derbi SLE | ||
| 000.873.0150 | engine cover right gold | N/A | 1976-1979 Derbi SLE | |
| 000.873.0200 | 11 | engine cover left gold | $50 | 1976-1979 Derbi SLE |
| 000.851.5180 | TT chaingaurd left black | 1976-1986 Derbi TT | ||
| 000.853.0150 | 12 | engine cover right black | $80 | 1976-1979 Derbi TT |
| 000.853.0200 | 13 | engine cover left black | $60 | 1976-1979 Derbi TT |
| 0A0.???.???? | 14 | engine cover L blk used | $50 | 1984-1986 Derbi SL (no cavity) |
| original only | 5 | center cover (early non) | N/A | 1976-1979 Derbi SL, SLE, TT |
| 000.821.8220 | 6 | center cover (non reed) | N/A | 1976-1979 Derbi SL, SLE, TT |
| 0A0.220.0561 | 7 | center cover (reed) | $90 | 1980-1986 Derbi SL, SLE, TT |
| 000.871.5100 | 3 | footrest right | $35 | 1986-1989 Derbi Variant Sport |
| continued … | 1980-1986 Derbi SL, SLE | |||
| 000.871.5500 | 4 | footrest left | $45 | 1986-1989 Derbi Variant Sport |
| continued … | 1980-1986 Derbi SL, SLE | |||
| 0F0.221.0221 | chaingaurd right | N/A | 1986-1989 Derbi Variant Sport | |
| 0F0.152.0181 | chaingaurd left | N/A | 1986-1989 Derbi Variant Sport | |
| 000.853.0150 | engine cover right | N/A | 1986-1989 Derbi Variant Sport | |
| 000.853.0200 | engine cover left | N/A | 1986-1989 Derbi Variant Sport | |
| 0A0.182.0221 | 8 | center cover | N/A | 1986-1989 Derbi Variant Sport |
Derbi Center Panels: The center panel choke button is supposed to push the Delorto carburetor choke lever down, and later allow it to release back up after the bike is started and the throttle is momentarily maxed out. But it often does not work properly, and it is finicky. When it sticks, either on or off, you must wiggle or move the center panel to make it click, or else remove the panel and operate the lever directly. The main cause is an incorrect angle of the carburetor. Loosen the clamp and rotate one way or the other. The carb should be vertical, but the finicky panel might require it to be slightly tipped. Because of this difficulty, many Derbi owners have cut holes in, or removed and discarded their center panels. Derbi fixed the problem on the 1986-1989 models by using a choke cable and a right handlebar lever. No more reaching down and fussing.
Derbi Center Panel Choke Button Parts: There are three different “feet” that press onto the vertical plastic button shaft. Here are shown the correct ones, for reference purposes. Some are for sale but not yet listed. Also the steel tongue at the front is for sale but not shown here.
Motobecane side covers are listed in Motobecane 40, 50, 50V Parts, section 28-29 frame parts.
This is an original leg shield set #20250, and mounting bracket set #20290.
It is new but there are some minor scratches, from years of being kept on parts shelves.
These have all sold. Only the lower mount kit is available.
Here is a diagram of some 1950-60’s Motobecane leg shields. The mounts are different.
70’s- 80’s Motobecane flywheel-magneto cover, 124mm ID
Motobecane magneto cover black new $19.0 with tabs
Motobecane magneto cover gray used $25-30 original without tabs
Peugeot 103 original covers N/A
Peugeot 103 chrome covers $45/set
These are the same as the type 2 black ones below.
Peugeot 103 side covers, 1. original N/A, 2. repro plastic $45/set, 3. repro fiberglass $40/set
Type 2 fits well. It says PEUGEOT in raised letters. The new soft plastic has some scratches.
Type 3 requires rubber washers at front bolts. They have a small 1/4″ to 3/8″ gap at the frame.
Covers #3 have a 3/8″ gap where they are supposed to touch the frame.
Rubber risers go under the front screws. They make installation difficult.
All of these models take the same side covers:
1976 Peugeot 103 LVS
1980 Peugeot 103 SPB
1975 Peugeot Sport
General copied this
1981 General 5 Star
and many compatibles
Peugeot 102 covers
L L side cover, used, blue N/A
L1 L toolbox, used, blue $50
L2 L toolbox, used, bluish silver $45
L3 L toolbox, used, bluish silver $45
L4 L toolbox, used, blu-sil, 1 knob $35
R R side cover, new, blue N/A
R1 R toolbox, used, blue, 1 bracket $35
R2 R tool. used blu-sil, no brackets $25
R3 R tool. used blu-sil, no brackets $20
R4 R tool. used blu-sil, no brackets $20
magneto cover Peugeot alum rough $25
1. Maxi 1-speed covers generic
1 410200 side panel set Puch 1-speed black generic $39
2 000000 side panel set Puch 1-sp used black orig xlnt N/A
2 000000 side panel set Puch 1-sp used black rough $30
Puch Maxi 1 and 2 speed covers
3 000000 side panel set Puch 2-sp used black rough $60
5 204900 screw M5 x 46 with black knob replica new $3
5 204900 screw M5 x 46 with black knob original used $8
5 204900 screw M5 x 46 with gray knob original used $12
5 000000 screw M5 x 45 phillips head substitute new 50¢
6 000000 left side panel Puch 1-sp used black rough $30
6 000000 left side panel Puch 2-sp used black rough $45
6 000000 left side panel Puch 1-sp used grey rough $55
7 000000 right side panel Puch 2-sp used black rough $45
7 000000 right side panel Puch 1-sp used black rough $25
Puch Maxi side covers exploded view
7 000000 right side panel Puch 1-sp used grey rough $45
8 205100 screw M5 x 36 with black knob replica new $3
8 205100 screw M5 x 36 with black knob original used $8
8 205100 screw M5 x 36 with gray knob original used $12
8 000000 screw M5 x 35 phillips head substitute new 50¢
Right screws: 2 long and 1 short. Left: 1 long and 2 short
1977 Puch Maxi
All of the Maxi one speed models have the same covers: Maxi, Maxi Luxe, Maxi Sport, Sport, Newport. All of the Maxi two speed models have the same covers: Maxi II, Maxi Sport LS 2, Sport MkII, Newport II.
magneto cover Puch used $20-$40
Puch Rigid cover set, black
1978 Puch Rigid
This is the no rear suspension model.
Puch Magnum, Sears, JC Penney side covers.
side panel set Puch Magnum used black original N/A
right side panel Puch Magnum used black original N/A
left side panel Puch Magnum used black original N/A
side panel screw with knob aftermarket M5x15 $3
side panel screw with knob original new M5x15 $6
side panel screw with knob original used M5x15 $3
side panel screw wide slot head subst. M5x15 50¢
15 mm cover screws
L aftermarket, R original
1978 Magnum
1978 Sears
1981 Murray
1978 JC Penney
Sachs 504, 505 engines
Left: 0244.067.100 magneto cover for Sachs 505
125.5 mm ID, chrome, good-used $22 or new $26
Right: 0244.167.100 magneto cover for Sachs 504
112.5 mm ID, chrome, new original $22
side covers (chain guards) none available
A 132872 named total
A 132872 length length
A 185818 34.0 43mm $4.00
A 1979-85 Si rear and middle
A 1982-on Bravo (all)
A 1986-on Si (all)
B 132871 00mm 41mm $4.00
B 1977-80 Bravo rear
B 1978-83 Grande rear
B 1979-85 Si front
C 143615 27.5 37mm $4.00
C 1972-80 Ciao rear and middle
C 1980-on Ciao PX rear and middle
D 132872 00mm 33mm $4.00
D 1977-80 Bravo front (can use E, 2mm shorter)
D 1978-83 Grande front, center-front and center-rear
E 143614 23.5 31mm $7.00
E 1972-80 Ciao front (can use D, only 2mm longer)
E 1980-on Ciao PX front
F 122957 spring 34mm $3.00 same for all
67-71 Ciao cover fasteners, different from 72-on
These can be purchased at UK Ebay.
1990’s Piaggio Ciao side cover set black none Fits ’72-80+ Vespa Ciao.
Includes the chrome emblems but not the fasteners.
Fasteners are front D, middle C, rear C.
Battery boxes were on early 70’s Ciao (US models with brake light), and late 70’s to early 80’s Ciao, Bravo, and Grande “blinker” models (equipped with turn signals and different switches and equipment). These side box covers have been scarce since the late 1980’s. They often fall off, and nobody is reproducing them. If you know of a source please tell Shaun by email.
The larger size box 227 x 160 mm is on Grande. Price $10 per box without lid, good-used.
The smaller box 222 x 158 mm is on Ciao and Bravo. $12 per box without lid, good-used.
Vespa battery boxes and covers have two sizes.
A large cover will fit a small box, but not visa versa.
Piaggio box sticker
42 mm aluminum
price $6 each
Vespa Ciao (small) side box cover set N/A
Vespa Grande (large) side box cover set N/A
Bicycles are external, motorcycles are internal.
Welcome. Steering bearings on most bicycles are external type, where the bearings lie outside the frame head tube (which is “not stepped”). Steering bearings on most motorcycles are internal type, where the bearings lie inside the frame head tube (which is “stepped”). All mopeds have the bicycle type steering bearings, except Derbi, which has motorcycle type.
Balls Up or Balls Down is the famous question faced when installing retainer (caged) ball bearings. The lower bearing always faces balls down, but the top bearing is sometimes facing up, and sometimes facing down. When it is installed wrong the cage gets crushed. The answer is: the balls always face the “cone” and not the “cup”, regardless of “up” or “down”. Sometimes the upper frame race is a “cone”, sometimes it is a “cup”.
Any bearing, when pushed together lightly with your fingers, should feel like the balls are rolling. Nothing should feel like it’s scraping or sliding. When you see the balls rolling at half the rotation speed, and the feel is solid and smooth like an ice cube on a smooth table, then the bearing is correct and good.
Caged Balls or Loose Balls can be interchanged. The cage/retainer is a convenience, that keeps the balls from falling out during installation. If the retainers are the wrong size, or bent, but the balls are correct, the balls can be popped out, and installed using grease to hold them. When the cage is eliminated, almost twice as many balls are required, enough to fill the circle with a half to one ball gap. This has another big benefit on worn out races that have dents where each ball was at. When the number of balls changes, say from 14 to 26, the dents do not line up anymore. So it’s almost like having a new race.
Bicycle headset threads and dimensions, from Sutherlands Handbook
Slight Differences in steering threads have frustrated many bicycle and moped mechanics trying to substitute steering parts from one machine to another. At right is a chart of bicycle headset threads and sizes. Basically the whole world uses ISO threads, one inch with 24 threads per inch (25.4 x 1.06), except France (25.0 x 1.00), Austria (26.0 x 1.00), Raleigh (25.4 x 1.02), and motorcycles (24.0 x 1.00). None of these thread sizes interchange. They either won’t screw on, or they will screw on loosely, and later slip around and “strip”.
Slight Differences in “30mm” frame cups, from 30.0 to 30.2 millimeters, turn out to not matter, ordinarily. Only when the fit is already too loose on a 30.2, or too tight on a 30.0, would it matter.
30.0 replacing 30.2: Take a moped frame that has 30.2 cups and pound one cup out with a hammer and punch, alternating sides. Then take a 30.0 cup and hammer it in. You will only have to strike it about half as hard, because it has a looser press fit. It will hammer out easier.
30.2 replacing 30.0: Take a moped frame that has 30.0 cups and pound one cup out with a hammer and punch, alternating sides. Then take a 30.2 cup and hammer it in. You will have to strike it about twice as hard, because it has a tighter press fit. It will hammer out less easy.
There is much confusion about what is 30mm, the cup outer, or the frame inner. A frame for 30.0 cups can be 29.7 to 29.9 mm inner diameter (id). A frame for 30.2 cups can be 29.9 to 30.1. Some cups are made in between, 30.1 mm. The cups for sale below are classified as “30.0 cups” if they measure 29.9 to 30.15 mm. They are classified as “30.2 cups” if they measure 30.16 to 30.25 mm.
Slight Differences in “32.5mm” frame cups, from 32.5 to 32.7 millimeters, turn out to not matter, ordinarily. They range from 32.5 to 32.7, with most around 32.6.
1. #52 2. #65 3. #73 4. “Euro”
1 #52 retainer, 15 – 3/16″ balls 31.5 id $5.00
For traditional American bicycles, AMF, Colombia, etc.
2 #65 retainer, 15 – 3/16″ balls 28.5 id $2.00
For traditional Schwinn bicycles, BMX, and low-end ATB.
3 #73 retainer, 16 – 5/32″ balls 29.0 id $1.50
For traditional ten-speed bicycles, standard bikes, childrens.
A good substitute for the European 14 – 5/32″ ball retainer.
4 “Euro” retainer, 14 – 5/32″ balls 27.0 id $8.00
This is like a #73 retainer with an inner lip for stiffness.
1 5/32 inch (#5) balls (3.97mm), pack of 26 $2 26 loose 5/32″ balls can replace a “Euro” 14-ball retainer.
For light duty moped and bicycle headsets. 26 loose 5/32″ balls can replace a #73 16-ball retainer.
2 3/16 inch balls (4.76mm), package of 26 $2 22 loose 3/16″ balls can replace a #65 15-ball retainer.
For heavy duty headsets, and some wheels. 22 loose 3/16″ balls can replace 21 loose 5mm balls
3 5 millimeter balls (5.00mm), pack of 21 $5 21 loose 5mm balls can replace 22 loose 3/16″ balls
For Puch Magnum, Sears Free Spirit, and Tomos. More balls, or bigger balls, can carry more weight.
In ascending order of thread size (fork), then cup size (frame).
After years of ignorance and misunderstanding, moped headset items have been identified, measured, verified, and presented below. With these measurements and specifications, it is possible to find correct replacements by measuring their sizes precisely with a calipers or a micrometer, and then matching it with the pictures and or brand names below, hopefully. These things have to be somewhat precise. If something is too tight it might not go on. If it’s too loose, or mismatched, the bike might be difficult to control, or be unpleasant to ride.
Derbi mopeds have internal steering bearings, like motorcycles have. You can see on the Derbi at the right, the bearings are not visible. But on the Sparta Foxi on the left, the steering bearings are visible above and below the frame head tube. The Sparta has external steering bearings, as do all other mopeds.
Japanese motorcycles usually have this 24×1 thread on the top nut, but further down the steering tube steps up to 25×1 or 26×1 or bigger, where the bearings go.
Peugeot headset, 25-1.0 thread, 30.0 cups
1 51974 complete set #2-10 $40
2 48684 top chrome cap, press fit $10-$18
3 51646 lock nut, 5 tall, 32 hex $5-$7
4 56118 lock washer serrated N/A
5 91783 adjustable cone chrome $4-$6
5a This little “nub”, from Peugeot bicycles, must be ground off.
5a It goes into a ring of holes, a special “holey” washer, not #4.
6 91778 upper frame cup chrome 30.0 od $8
7 91502a upper balls, 26 – 5/32″ 3.97mm $2 or use #73
8 91502 lower “Euro” retainer 14-5/32″ $8 or use #73
9 46840 lower frame cup chrome 30.0 od $8
10 14512 lower cone (crown race) 26.7 id $5-$8
30.0 cups will replace 30.2 ones. They just press in easier.
Motobecane headset, 25-1.0 thread, 30.2 cups
1 23312 partial set #3,5,6,7,8,9 N/A
2 15528 top plastic cap, press fit $10–$18
3 15526 lock nut, 32 octagonal $6
4 00000 plain washer 25x35x1 $2
5 23016a adjustable cone, zinc plated $8-$12
6 23016b upper frame cup, zinc 30.2 od $7
7 00005 upper balls, 26 – 5/32″ $2/26 or use #73
8 00005 lower balls, 26 – 5/32″ $2/26 or use #73
9 14208 lower frame cup, zinc 30.2 od $7
10 19859 steering tube with lower race N/A
11 14606 lock plate/washer $4
12 14605 pivot bolt M20-1.0, 32 oct $15
Vespa Grande set, 25- 1.0 thread, 33.0 cups
Vespa Grande headset is unique, heavy duty, French thread.
3 G68856 chrome cap nut, 32 hex, 25×1 $12-18
3a 000000 Piaggio emblem pressed-in N/A
4 306912 thin washer for nut $3
5 G21316 adjustable cone, 25×1, notched $15
6 G22937 upper frame cup, zinc 33.0 od $7.00
7 G21317 upper balls, 27 – 5/32″ 3.97mm $2/27
8 G21317 lower balls, 27 – 5/32″ 3.97mm $2/27
9 G22937 lower frame cup, zinc 33.0 od $7.00
10 G21315 lower cone (crown race) 25.6 id $7.00
The Grande crown race is only 25.6 id, and the fork is 25.7.
Honda PA50 headset, 1″-24 thread, 30.0 cups
The Honda PA50 Hobbit (Camino) is made in Belgium.
It is mostly European in design and components.
3 00000000 chrome cap nut, original N/A use bicycle
4 00000000 washer 26x32x1.5 $3
5 00000000 adjustable cone chrome N/A use bicycle
6+9 00000000 frame cup chrome, each 30.0 od $5 2.0 thin wall
7+8 00000000 orig. retainer 14-5/32″ each $8
7+8 JB-1909 #73 retainer, 16-5/32″ each $1.50
10 00000000 lower cone (crown race) 25.7 id N/A
10
This is the original crown race size. It was loose on the fork.
Three samples of Honda PA50 original forks were like this.
The fork steering tube is a straight 25.4mm all the way down.
So there needs to be a 0.15mm hard steel strap under the race.
General headset, 1″-24 thread, 30.0 cups
2 1150-5860 chrome cap nut, original $20 use bicycle
3 1150-5895 stepped notched nut, 31.8 lip $15
The bottom side of nut #3 has a lip that fits inside #4a.
That’s why the holes in #4 and #4a are big, 32 not 26.
This lip carries the side loads through the nut threads,
instead of the fork top pressing on the threads directly.
1960’s small Honda motorcycles had this design.
4 1150-5894 plain washer 32x44x0.5 $5
4a 3150-5885 fork top plate, 31.8 hole N/A
4b 1150-5886 spacer tube 26x41x8 $7
5 1150-5893 adjustable cone chrome $15
6 1150-5892 upper frame cup chrome 30.0 od $15
7+8 1150-5890 loose balls, 23 – 3/16″ 4.76mm $2/26
9 1150-5891 lower frame cup chrome 30.0 od $15
10 JB-2742 lower cone (crown race) 27.0 id $7
Asian mopeds use the Japan Industry Standard (JIS). General, Lazer, Grycner, Clinton, Jui Li, AMS, Tas, Tym, etc.
Tange Levin CDS sealed precision headset
JB-35496 EC30/27 Tange Levin sealed headset $30
0000000 upper frame cone black 30.0 od N/A
0000000 lower frame cup chrome 30.0 od N/A
0000000 lower cone (crown race) 27.0 id N/A
JIS stands for Japan Industry Standards.
JIS crown races are 27.0 id, for a 27.1 fork.
JIS frame cups are 30.0, for a 29.9 frame.
JB-35495 EC30/26 Tange Levin sealed headset $30
0000000 upper frame cone black 30.2 od N/A
0000000 lower frame cup chrome 30.2 od N/A
0000000 lower cone (crown race) 26.35 id N/A
ISO stands for International Standards Organization.
ISO cups are 30.2 mm o.d, for a 30.1 mm i.d frame.
ISO crown races are 26.4 id, for a fork crown 26.5 od.
Nuts and Washers:
A 0000000 thin lock nut, for spacing, 1″-24, oct $2.00
B JB-35705 Origin8 black open top nut, 1″-24, oct $2.00
C JB-3510 Wald 220 chrome open nut 1″-24, oct $5.00
D 0000000 keyed thick washer 26x34x3 $1.00
E 0000000 plain thin washer 26x32x1.5 $1.50
F 0000000 plain thick washer 26x33x2.5 $2.00
Batavus headset, 1″-24 thread, 30.1 cups
Batavus mopeds are made in Holland.
1 47.043.00 partial headset #3-10 N/A
2 46.306.00 plastic plug for nut N/A
3 02.059.00 chrome open nut, original $5-10 use bicycle
4 06.055.00 washer 26x34x1.5 $3
5 47.043.04 adjustable cone chrome N/A use bicycle
6 47.043.03 upper frame cup, zinc 30.1 od N/A use Peugeot
7+8 47.096.00 orig. retainer 14-5/32″ each $8
7+8 JB-1909 #73 retainer, 16-5/32″ each $1.50
9 47.043.02 lower frame cup, zinc 30.1 od N/A use Peugeot
10 47.043.01 fork cone (crown race) 26.5 id $12 use bicycle
11 46.117.00 spring strap/sleeve 1.0/0.35 N/A
The fork steering tube is a straight 25.5mm all the way down.
The strap crushes to 0.5 mm, so it adds up, 26.5 = 25.5 + 2*0.5.
The ideal spring strap for Batavus would be 0.5mm.
Trac headset, 1″-24, 30.0 and 30.2 cups
Trac mopeds are made in Korea by Kia and Dae Lim (DMC).
This example is for the early Tracs 1982-85 with M56 engines.
3 90305-M56-8900 chrome cap nut, orig. hex N/A use bicycle
4 90503-M56-8900 washer 26 x 37 x 1 $3
4a 90304-M56-8900 notched thin nut N/A use octag.
5 53211-M56-8900 adjustable cone chrome N/A use bicycle
6 50301-M56-8900 upper cup chrome 30.2 od N/A
7 96211-05000 upper balls, 26- 5/32″ #5 $2/26 or use #73
8 96211-05000 lower balls, 26- 5/32″ #5 $2/26 or use #73
9 50302-M56-8900 lower cup chrome 30.0 od N/A
10 53212-M56-8900 cone (crown race) 25.5 id N/A
This is the original crown race size, but it was loose on the fork.
The fork steering tube is a straight 25.4 mm all the way down.
The looseness had caused a 25.3 mm wear groove on the tube.
To be tight it needs a spring strap and a bigger race, like Batavus.
Cimatti headset, 1″-24 thread, 30.2 cups
Cimatti’s are Italian, and use Italian headset standards.
Cups are 30.2, for a 30.1 frame. Same as bicycle.
3 18-00-51 chrome cap nut, 32 octagon $20
4 18-01-18 plain washer, 26x30x1.5 $3
4a xx-xx-xx spacer tube, 26x29x9 N/A
5 12-00-65 adjustable cup chrome $12
6 12-00-62 upper frame cone, zinc 30.2 od $8
7+8 10-00-39 orig. retainer 14-5/32″ each $8
7+8 JB-1909 #73 retainer, 16-5/32″ each $1.50
9 12-00-63 lower frame cup chrome 30.2 od $20
10 12-00-64 fork cone (crown race) 26.5 id $12
11
Italian crown race is 26.5 id, for a fork crown 26.6 od.
ISO (International Standards Org.) threads are 1″- 24 tpi.
Garelli headset, 1″-24 thread, 30.2 cups
Garelli’s are Italian, and use Italian headset standards.
1 507607.2100 complete original set #3-10 $65
1a 000.0000 set with chrome hexagonal nut $45
2 206.3067 chrome open nut, 32 octagonal $6
3 000.3086 chrome cap nut, 32 octagonal $20
4 000.3085 plain washer, 26x30x1.5 $3
5 207.3078 adjustable cup chrome $12
6 000.3062 upper frame cone zinc 30.2 od $8
7+8 10-00-39 orig. retainer 14-5/32″ each $8
7+8 JB-1909 #73 retainer, 16-5/32″ each $1.50
9 201.3064 lower frame cup chrome 30.2 od $20
10 000.3065 lower cone (crown race) 26.5 id $12
One German-made moped, Kynast, uses this headset,
because Kynast (Flying Dutchman) has an Italian fork.
Vespa Ciao or Bravo, 1″- 24 tpi, 30.2 cups
Vespa mopeds are made in Italy by Piaggio.
1 135977 partial original set #5-10 $25
3a 145608 chrome cap nut, 32 oct (Bravo) $20
3 137609 chrome open nut, 32 oct (Ciao) $18 use bicycle
4a 145607 locking plate, 32 octagon (Bravo) N/A
5 136258 adjustable cup chrome decagon $12
6 123315 upper frame cone zinc 30.2 od $8
7+8 10-00-39 orig. retainer 14-5/32″ each $8
7+8 JB-1909 #73 retainer, 16-5/32″ each $1.50
9 123316 lower frame cup chrome 30.2 od $12
10 123317 lower cone (crown race) 26.5 id $10
11 Vespa uses Italian headset standards, 26.5 and 30.2.
12
Schwinn headset
1″- 24, 32.5 cups
1960’s re-chromed
1968 Schwinn
BMX equipped
In the 50’s – 60’s USA this was a Schwinn-only head set size.In the late 1960’s BMX (bicycle moto cross) began. The first BMX bikes were 20″ kids bikes with off road tires, MX handlebars and seat. The Schwinn Stingray was preferred, because of it’s heavy duty construction and high quality. In the 70’s BMX equipment became Schwinn-compatible, including frames with 32.5 mm headset cups. BMX became very popular, as did the headset. In the 80’s it became the mountain bike (ATB) standard. In the 1990’s bigger 1-1/8″ steering tubes came out on high-end ATB’s, with 34.0 frame cups. Soon 34mm frames became the new ATB standard. Then bigger 1-1/4″ steering tubes and 37mm frames followed. Now this historic headset is almost obsolete.
BMX Headset, 1″-24 thread, 32.5 cups
This is a 1980’s-90’s BMX or ATB headset, 32.5 cups.
The cups fit Puch Magnum, Tomos and Sears Free Spirit.
1 JB-35334-0 EC32/26 Sunlite chrome headset $10
3 JB-35334-3 Sunlite chrome open nut, 32 hex $5
4 JB-35334-4 keyed washer 26x34x1.5 $1
5 JB-35334-5 adjustable cone chrome $3
6 JB-35334-6 upper frame cup chrome 32.5 od $4
7 JB-35334-7 special retainer, 16-5/32″ each $3
8 JB-35334-7 special retainer, 16-5/32″ each $3
For 50 years these had #65 retainers, with 3/16″ balls.
9 JB-35334-9 lower frame cup chrome 32.5 od $6
10 JB-35334-1 lower cone (crown race) 26.4 id $8
The fit, roundness and finish are surprisingly good.
AMF headset, 1″-24 thread, 33.6 cups
1 MP-0014 AMF original headset #3-10 $40
1a JB-3512 Wald 4080 headset 3a-10 below $15
3 MP-0014-1 chrome AMF open nut, hex $18
3a JB-3510 Wald #220 chrome nut, 32 oct $5
4 MP-0014-1a tab/lock washer $2
4a JB-3503 1 inch keyed washer $1
5 MP-0014-2 adjustable cone, zinc $8
6+9 MP-0014-4 frame cup zinc, each 33.6 od $15
6a+9a JB-3513 Wald #410 cup, each 33/34 od $6
7+8 MP-0014-3 #52 retainer 15 – 3/16″, each $5
10 MP-0014-5 lower cone (crown race) 25.7 id $7
10a JB-35345 lower cone (crown race) 26.4 id $8
Wald headset, 1″-24, 32.9/34.3 cups
This standard is on AMF, Colombia mopeds and bicycles.
Also traditional American bicycles, Murray, Huffy, etc.
Wald 4080 headset is for traditional or vintage American.
The Wald 410 replacement frame cups have 3 “bumps”.
The diameter is 32.9 mm, but 34.3 mm at the bumps.
Grind them down to fit any frame from 32.8 to 34.2 mm.
American Crown Race: Unlike other fork crowns that have a small step at the base of the steering tube, American type bicycles have a smooth flare. The race #10 only touches at the top of the flare, and at the bottom floor of the fork. You can see in the right photo the crown race is cone shaped inside. All other crown races are cylindrical shaped inside.
If an American type conical crown race is not available, then a 26.4 mm id standard crown race will substitute (at least it did on this fork), thanks to the bottom having enough straight section that is 26.5 mm outer diameter. It sounds crazy that a 26.4 race will substitute for a 25.5 one. That is why this explanation and pictures are needed here.
Puch Maxi set, 26 -1.0 thread, 30.8 cups
The Puch Maxi headset is the same as Sachs (Hercules).
1 0000000000 partial headset #5-10 see treatland.tv
2 3491300181 chrome open nut $7-$15
3 3491305181 chrome cap nut $8-$20
4 0009013935 plain washer 26x32x2 $3
5 6001330071 adjustable cone chrome $3-$5
6+9 6002330051 frame cup, zinc each 30.8 od N/A 2.0 thin wall
7+8 0003298 orig. retainer 14-5/32″ each $8
7+8 JB-1909 #73 retainer, 16-5/32″ each $1.50
10 6002330061 lower cone (crown race) 26.7 id $5-$8
11 3491300151 spring strap/sleeve 1.0/0.35 mm N/A
Installed, the sleeve becomes 0.35 mm. So 26.7 = 26.0 + 2*0.35
These sizes are the traditional Austrian bicycle headset standard.
The 1984-86 Puch Cobra, was a “Magnum”, but it had this Maxi headset.
Sachs headset, 26-1.0 thread, 30.8 cups
The Sachs headset is the same as a Puch Maxi headset.
1 5041009701 partial headset #5-10 see treatland.tv
2 9271013516 chrome open nut N/A use Puch Maxi
3 9271013519 chrome cap nut N/A use Puch Maxi
4 9279920817 plain washer 27x37x1.25 N/A
4a 9279919606 spacer ring 27x32x6 N/A
5 000000000 adjustable cone chrome N/A use Puch Maxi
6+9 00000000 frame cup, zinc each 30.8 od N/A 2.0 thin wall
7+8 00000000 orig. retainer 14-5/32″ each $8
7+8 JB-1909 #73 retainer, 16-5/32″ each $1.50
10 000000000 lower cone (crown race) 26.7 id $5-$8
11 9219769501 spring strap/sleeve 1.0/0.35 thick N/A
Installed, the sleeve becomes 0.35 mm. So 26.7 = 26.0 + 2*0.35
These sizes are the traditional Austrian bicycle headset standard.
Sparta, KTM, 26-1.0 thread, 32.0 cups
1 00000000 complete headset #3-10 $35
2 335.01.01 chrome cap nut (Kreidler & KTM) $10-$18
3 00000000 chrome cap-lug nut (for Sparta) $10-$20
This nut bottom is cone shaped, for centering, like a lug nut.
4 235.01.10 plain washer (for Kreidler & KTM) $2
5 00000000 adjustable cup, bright zinc $5-$8
6 235.01.02 adjustable cup chrome (Kreidler) $15
6 00000000 upper frame cone, zinc 32.0 od $5-$8
7+8 JB-1908 #65 retainer, 15 – 3/16″ each $2
7+8 00.69.27 22 – 3/16″ balls (Kreidler) each $2/26
9 00000000 lower frame cup zinc 32.0 od $5-$8
10 00000000 lower cone (crown race) 26.7 id $5-$8
New crown races range from 26.65 to 26.74 mm id.
Puch Magnum set, 26-1.0 thread, 32.6 cups
Puch Magnum MkII, Sears Free Spirit 8084, 8085, 8086 silver:
3a 3211308181 chrome cap nut (zinc on Sears) N/A
4b 3211308191 washer 29x35x.75 N/A above plate
4a 3211308511 spacer 26x32x13.5 $8 below plate
Magnum XK, Sears Free Spirit 8080 blue, 8081,8082,8083 red:
3 3491305181 chrome cap nut $8-$20
4 9013935 washer 26x32x2.5 $3 below plate
All Puch Magnums (except Cobra) and Sears Free Spirits:
5 3211307081 adjustable cone zinc 51 od $15-$20
6+9 25221 frame cup, zinc, each 32.6 od $25 3.3 thick wall
7+8 25226 loose balls 5mm qty 21 each $5/21 or use 3/16
10 25220 lower cone (crown race) 26.7 id $5-$8
11 00000 early Schwinn cup, chrome 32.5 $12 2.0 thin wall
12 02016 Sears Free Spirit cup, zinc 32.6 $15 2.8 thick wall
13 00000 Schwinn/BMX cup, chrome 32.7 $20 2.6 thick wall
Tomos A3 and A35, 26-1.0 thread, 32.6 cups
Tomos made Puchs, under license, from 1955 to 1974.
That is why the steering parts also fit Puch Magnum.
3 200718 chrome open nut 32 hex $8-$12
3a 219349 chrome cap nut 32 hex $8-$15
4 206701 plain washer 26x36x1.5 $3
5a 200717 notched adjustment nut $5
5b 200715 dust shield 26x47x9mm $5
5c 200714 upper cone, no threads 26.0 id $8
6 200558 upper frame cup, zinc 32.6 od $15 2.6 thick wall
7 044535 upper balls 5mm qty 21 $5
8 044535 lower balls 5mm qty 21 $5
9 200471 lower frame cup, zinc 32.6 od $20 2.6 thick wall
10 200714 lower cone (crown race) 26.0 id $8
11
The 1987-06 Tomos fork has M26-1.0 rolled threads 25.8 od, then smooth 25.1 od, flaring to 26.1 at arrow.
The 1975-86 Tomos fork has M26-1.0 cut threads 25.8 od, then smooth 26.0 od, flaring to 26.1 at arrow.
Tomos A55 headset, 26-1.0 thread, 32.5 cups
1 230741 partial headset #4-11 $40
The 2007-12 Parts Catalogs only have the older fork items.
So the 07-on EBR fork items, 10 and 11, are not available.
3 219349 chrome cap nut 32 hex $8-$15
4 222848 chrome washer 26x36x2 $3
5a 200717 notched adjustment nut $5
5b 200715 dust shield 26x47x9mm $5
5c 200714 upper cone, no threads 26.0 id $8
6 223155 upper frame cup, zinc 32.5 od $15 2.6 thick wall
7 044535 upper balls 5mm qty 21 $5
8 044535 lower balls 5mm qty 21 $5
9 223157 lower frame cup, zinc 32.5 od $18 2.6 thick wall
10 00000 lower cone (crown race) 27.4 id N/A use 26.7-27.0
11 00000 spring strap/sleeve 1.0/0.4 thick $10 for 27.4 race
The strap crushes down from 1.0 to 0.7 when installed.
So 27.4 = 26.0 + 2*0.7. Ideal strap is 0.7mm thick.
The 2007-13 Tomos fork has M26-1.0 cut threads 25.8 od, then smooth 26.0 od, with no flare.
Instead of a flare or step, it has a #11 spring strap, the same one that a Puch Maxi has.
This futuristic early 1980’s moped has a bigger steering tube and bearings.
This size was also for an old French tandem, according to http://sheldonbrown.com/cribsheet-headsets.html
3 212152 chrome cap nut 36 oct $20
4 000000
5 000000
6 000000 upper frame cup, zinc 41.2 od $15 4.0 thick wall
7 000000 upper balls
8 000000 lower balls
9 000000 lower frame cup, zinc 41.2 od N/A 4.0 thick wall
10 000000 lower cone (crown race)
EC34/30. This (1.125″) was the first oversize for 1990’s mountain bikes (ATB), 34.0 cups, 30.0 crown race.
EC37/33. This (1.25 inch) is the biggest external cup (EC) threaded bicycle headset, 37.0 cups, 33.0 crown race.
updated 2021-12
Dimensions are width, height, rise, clamp length, control length, pullback.
Natural angle: Close your eyes, clench your hands in a fist, relax, and put both arms forward and down a little. That is the natural position of your hands. They form an angle, called θf, viewed from the front, and another angle, called θt, viewed from the top. Handlebars are all close to the average natural position of human hands.
Positioning: Clamp-on handlebars can rotate in the clamps. During installation the rider chooses the best clamping position, for comfort and control. Most handlebars (except Clubman) are positioned with the rising part going straight up when viewed from the side. A rider with short arms might prefer a more rearward position, while a rider with long arms might want a more forward position.
Flipping (inverting): Any clamp-on handlebar can be flipped over (inverted). But most will feel wrong and strain the wrists. Of the handlebars shown below, only the Clubman and Drag bars can be flipped over, and still feel right.
Dimensions: Six lengths can completely describe a handlebar, without the need for angles. Here the side-view angle θs, and the top-view angle θt, are calculated from the lengths R, H, P, L, W, and C.
tan(θt) = 2*P / (W-C)
sin(θf) = (R-H) / L
Measuring: When measuring the dimensions, the end points are at the centers of the tubes, not the edges. The handlebar is placed on a flat table. With the rises vertical, the rise and height are measured from the center of the bar, straight down to the table, with 1/2 of the bar width subtracted (-0.4 inch). With the rises horizontal, the pullback is measured similarly.
Height: Looking from the front, most handlebars, especially low ones, slant down slightly going outward, at an angle θf, because the height is less than the rise. On some handlebars, the height is greater than the rise, and θf is negative.
Pullback: Looking at most motorcycle bars from the top, the bars slant rearward, at an angle θt, because the pullback is greater than zero. When the pullback is zero, θt becomes zero. Cruiser bars are for comfort and have a large pullback, where the bar ends point more towards the back of the bike. Drag bars are for high powered acceleration, and have a small pullback for control and grip.
2D or 3D: When the pullback is zero, the handlebar is 2-dimensional and will lay completely flat. Otherwise, most 4-bend (non-Drag) bars are 3D and do not lay flat on a table. 2D handlebars are simpler to make, but don’t feel “right”, except maybe at one particular position. 3D handlebars are more complicated to make, but will feel “right” in a range of positions.
Width: Wider handlebars allow better control. Off road bikes have wider bars. Narrow bars have less control, but are more aerodynamic for better fuel economy or higher top speed, and can squeeze through smaller spaces, like in between stopped cars.
Rise: High rise handlebars are taller, and put the hands higher. This can position the rider’s torso in a more upright position, for helping with back pain. Higher bars allow better control when standing up, like when jumping or hitting pot holes. Low rise handlebars put the rider leaning more forward. That reduces wind drag for higher top speed or better fuel efficiency.
Control length: Motorcycle handlebars need about 3 inches more control length than bicycle handlebars. They have thumb-operated levers or buttons, in addition to the finger-operated hand levers. Motorcycles have a twist throttle and a hydraulic brake on the right that takes up space. For motorcycles the minimum control length is roughly 8 inches. For mopeds it is about 6 inches. For bicycles it is about 5 inches. Any handlebar that has extra control length, can be cut shorter, up to the minimum control length, to reduce it’s width.
Clamp length: The center straight area needs to be at least as long as the clamps. Motorcycles have wider handlebar clamps than mopeds. Here is a table of moped handlebar clamp spacings:
xxxxxxxxx xx inner outer
Tomos A55 xx 1.7″ xx 3.1″ only this fork has enough inner space for bicycle bars with a 1″ x 1.7″ center bulge
Puch Maxi xx 1.55 xx 3.2
Hercules xxxx 1.2 xxx 2.4
Peugeot 103 x 1.2 xxx 2.3
Cimatti xxxx none xxx 2.4
Motobecane x 1.5 xxx 2.7
Applications: Not all mopeds can accept clamp-on “universal” handlebars. Some mopeds have bolt-on handlebars, where there are plates welded to the bar that bolt to the fork. Some mopeds have stem-mounted handlebars, where there is a long neck that goes inside the fork, held by a wedge bolt.
Thickness: Most modern 7/8 handlebars are 0.875 inch = 22.2 mm.
Vintage metric handlebars, are 0.863 to 0.866 inch = 21.9 to 22.0 mm.
The dual standard can sometimes cause problems.
22.0 controls on 22.2 bars: Wedge type controls, such as Domino, for 22.0 bars cannot fit on 22.2 bars. Wedge type controls do not clamp, but instead press a cone into the bottom of the handlebar. 1960’s, 70’s and 80’s “vintage” Domino controls have a fixed size hole, 22.0 mm, for 21.9 bars.
22.2 controls on 22.0 bars: Original vintage handlebars 22.0, with 1970’s Magura clamp type controls, require a strip of aluminum can under the clamp, to hold solid onto the handlebar. Otherwise the throttle slips around the bar. 1990’s and 2000’s “modern” Domino wedge type controls have a 22.3 mm hole, that works fine on either modern 22.2 or vintage 22.0 bars.
width 26
height 8.5
rise 7.5
clamp length 4.0
control length 6.5
pull back 4.0
Stock Moped chrome $25 thickness 0.872″ (22.14)
Fits clamp type (22.6) controls and modern wedge type (22.3) controls.
Fits some vintage wedge type (22.0) controls, but some need sanding.
The width cannot be reduced by cutting
because the control length is already short, 6.5″.
width 30
height 2.0
rise 2.3
clamp length 5.0
control length 8.2
pull back 4.7
GP Touring chrome $25 thickness 0.869″ (22.07)
Fits clamp type controls and modern wedge type (22.3) controls.
Fits some vintage wedge type (22.0) controls,
but others require careful sanding of the high places.
For most mopeds that only need 6″ of control length, the ends
can be cut up to 2.0″, to reduce the width by ≈3.5″, from 30 to 26.5″.
width 29
height 3.0
rise 2.0
clamp length 4.2
control length 9.0
pull back 3.1
Superbike chrome $25 thickness 0.869″ (22.07)
Fits clamp type (22.6) controls and modern wedge type (22.3) controls.
Fits some vintage wedge type (22.0) controls,
but others require careful sanding of the high places.
Superbike black $25 thickness 0.890″ (22.6)
Only fits clamp type (22.6) controls.
With wedge type controls, the 22.6 mm bar does not fit into
the fixed-size hole (modern 22.3 or vintage 22.0 mm).
The black powder coating must be sanded off, to reduce the thickness.
But it is difficult to not scratch the exposed area.
For most mopeds that only need 6″ of control length, the ends can
be cut up to 3.0″, to reduce the width by ≈5″, from 29 to 24″.
width 29
height 5.0
rise 3.0
clamp length 4.8
control length 8.2
pull back 3.3
Daytona chrome $25 thickness 0.869″ (22.07 mm)
Fits clamp type (22.6) controls and modern wedge type (22.3) controls.
Fits some vintage wedge type (22.0) controls, but others need sanding.
Daytona black $25 thickness 0.885″ (22.5 mm)
Only fits clamp type (22.6) controls.
With wedge type controls, the 22.6 mm bar does not fit into
the fixed-size hole (modern 22.3 or vintage 22.0 mm).
The black powder coating must be sanded off, to reduce the thickness.
But it is difficult to not scratch the exposed area.
For most mopeds that only need 6″ of control length, the ends
can be cut up to 2.0″, to reduce the width by ≈3.5″, from 29 to 25.5″.
width 28
height 0
rise 0
clamp length 6.0
control length 9.5
pull back 2.6
Drag bars chrome $22 thickness 0.869″ (22.07)
hFits clamp type (22.6) controls and modern wedge type (22.3) controls.
hFits some vintage wedge type (22.0) controls, but others need sanding.
Drag bars black $22 thickness 0.885″ (22.5)
Only fits clamp type (22.6) controls.
With wedge type controls, the 22.6 mm bar does not fit into
the fixed-size hole (modern 22.3 or vintage 22.0 mm).
The black powder coating must be sanded off, to reduce the thickness.
But it is difficult to not scratch the exposed area.
For most mopeds that only need 6″ of control length, the ends
can be cut up to 3.5″, to reduce the width by 7″, from 28 to 21″.
width 28
height 0
rise 3.3
clamp length 5.5
control length 10
pull back 5.9
Clubman chrome N/A thickness 0.869″ (22.07)
Fits clamp type (22.6) controls and modern wedge type (22.3) controls.
Fits some vintage wedge type (22.0) controls, but others require sanding.
These bars are shown inverted, with the rises going upward.
In this position the bars are higher, but still at an angle that feels right.
Normally they are installed with the rises going down and forward.
That position is what racing bikes have, for reduced wind drag.
For most mopeds that only need 6″ of control length, the ends
can be cut up to 4″, to reduce the width by 8″, from 28 to 20″.
This has a 1 by 1.7″ center bulge.
Because of that, it only fits 08-17
Tomos or bikes with that fork.
width 20.3
height 5.0
rise 4.8
clamp length 3.5
control length 6.0
pull back 2.5
2009 Tomos Sprint
with Wald 3346 bars
Wald 3346 chrome $15
thickness 7/8″ 0.0876 (22.3)
Only fits clamp type (22.6) controls
and modern wedge type (22.3) controls.
This is the only 7/8″ handlebar offered
here that is truly 7/8 = 0.875 inch,
because it’s American made.
Most Original Equipment Manufacturer (OEM) handlebars are available in a range of conditions. All are straight, unless noted. Some are new, some good used, and some are pitted, peeling or scratched. Some have tiny scuffs from being jostled around in parts bins. They are priced accordingly. Photos of actual choices are available, by email.
Dual standards: Vintage European original bicycle and moped handlebars are 21.9 to 22.0 mm, to fit 22.0 controls. This metric standard lasted until the 1980’s. After the 80’s most European handlebars became 22.3 mm = 7/8 inch.
1975 Cimatti City Bike
Cimatti 3110
$20-$45 good used
thick 0.862 (21.9mm)
width 24
height 9.6
rise 9.3
pull back 6.5
clamp length 3.0
control length 6.2
These bars have a plate and a clamp. The clamp has the strength to hold the bar, while the plate keeps it in that one position. The clamp will still hold if the plate is cut off. Without the plate the bar position is adjustable. Curiously this Cimatti handlebar is made by Garelli. See the tilted G logo?
70’s Cimatti Chic
Cimatti 2940 bars with levers
$70 very good used
thick 0.862″ (21.9 mm)
width 23
height 9.5
rise 10.0
clamp length 3.5
pull back 7.3
control length 6.2
’76 Garelli Eureka Flex
Garelli 1975-79 bars-with-stem
500.204.5100 $35 rusted (shown)
thick 0.862 (21.9 mm)
width 22.5
height 7.9 plus stem
rise 8.3 plus stem
clamp length —
control length 5.8
pull back 5.1
These bars are on 1975-79 Garelli mopeds. They can adjust up and down, by how far the stem is inserted.
1978 Super Sport XL
Garelli 1977-79 high bars-with-stem
none available
thick 0.862 (21.9 mm)
width 23?
height
rise
clamp length —
control length 5.8?
pull back
These bars are on 1977-78 Garelli Supersport XL and others.
’78 Garelli Super Sport LTD
Garelli 1978-79 bars-with-plate
none available
thick 0.862 (21.9 mm)
width 23,
height 11.1
rise 10.2
clamp length —
control length 5.7
pull back 3.6
These bars are on certain 1978-79 models. The bottom of the handlebar has a chrome steel plate that says Garelli. The chrome handlebar plate bolts to the painted fork top plate. The fork top plate is made of stamped sheet steel. For these bolt-on bars the fork top plate was made too thin, causing most to crack near the edges of the handlebar plate. Garelli soon realized this problem, and stopped making the bars-with-plate design in 1979.
1978 Garelli VIP
Garelli 1978-86 clamp-on bars
507643.5100 none available
thick 0.862 (21.9 mm)
width
height
rise
clamp length
control length
pull back
These bars are on most 1980-86 Garelli, US models, and 1978-79 VIP and LTD (mag wheel) deluxe models. For about one year in 1978-79 all three handlebar designs were on Garelli mopeds, handlebar-with-stem, handlebar-with-plate, and clamp-on handlebar. But by 1980, all models had the clamp-on handlebar design, with strengthened fork top plate that did not crack easily.
1978 Gitane Confort
Gitane (Testi) bars-with-plate
052181 $40 good used (shown)
thickness ∼7/8″ 0.862″ 21.9 mm
width 23.5
height 5.4
rise 6.6
clamp length —
control length 6.2
pull back 6.5
The 1977-80 Gitane mopeds (US models, made by Testi) had this bolt-on handlebar.
1978 Honda PA50
Honda PA50
$50 (shown)
thick 0.862 (21.9 mm)
width 23.5
height 9.5
rise 8.3
clamp length 3.5
control length 6.0
pull back 3.0
These clamp-on bars have large holes for the electrical wires to go inside the handlebar. They have small holes for the little pins that hold the controls in a fixed position. They also have rubber-grommet covered holes for the throttle and choke or decomp cable. So altogether there are 7 holes.
Kreidler bars
355.0301 $45 good used
xxx thickness ∼7/8″ 0.862″ 21.9 mm
xxxxxxx width 24″
xxxxxx height 8.7
xxxxxxxx rise 8.8
xclamp length 3.2
control length 6.3
xxxx pull back 3.5
These clamp-on bars are on Kreidler Flory MP9 and MP19 mopeds. The handlebar has a short tab under the center, that fits into a slot in the fork top plate.
Motobecane clamp-on bars
21143 $20 – $40 used, straight
1977 Motobecane 50V
xxx thickness ∼7/8″ 0.862″ 21.9 mm
xxxxxxx width 21.5
xxxxxx height 6.3
xxxxxxxx rise 6.2
xclamp length 3.5
control length 5.5
xxxx pull back 4.6
These bars are on 1975-1980 Motobecane mopeds, US models 7, 40, 50, 50V, Moby, Le Moped.
Peugeot 103 bars
56320 (not available)
1977 Peugeot 103 LVS
xxx thickness ∼7/8″ 0.862″ 21.9 mm
xxxxxxx width
xxxxxx height
xxxxxxxx rise
xclamp length
control length
xxxx pull back
These bars are on Peugeot 103LS and 103LVS models. They are so scarce that no sample was available for a photo and measurement.
1980 Peugeot 103 SPB
Peugeot SP bars
52711 $70 new old stock
xxx thickness ∼7/8″ 0.862″ 21.9 mm
xxxxxxx width 22.3
xxxxxx height 7.5
xxxxxxxx rise 7.0
xclamp length 2.8
control length 6.5
xxxx pull back 4.2
These bars are on 102SP and 103SP models. They have thin wall tubing, for light weight, but they bend easily. So unbent originals are scarce.
Puch 1969-77 Maxi bars-with-stem
349..232..1000 $35 used, pitted
1977 Puch Maxi
bars-with-stem
xxx thickness ∼7/8″ 0.862″ (21.9mm)
xxxxxxx width 23″
xxxxxx height 6.0 plus stem
xxxxxxxx rise 6.0 plus stem
xclamp length —-
control length 5.5
xxxx pull back 2.8
These bars are on early Puch Maxi models, 1969 to 1977. The height is adjustable by the position of the stem.
1977 Puch Maxi
with clamp-on bars
Puch Maxi 1977-86 clamp-on bars
321..532..3011 see below for prices
xxx thickness ∼7/8″ 0.862″ (21.9mm)
xxxxxxx width 24.2″
xxxxxx height 8.8
xxxxxxxx rise 8.6
xclamp length 3.5
control length 6.0
xxxx pull back 4.3
These clamp-on bars are on 1978-79 Maxi Luxe, Newport, Maxi II, and 1980-86 Maxi, Maxi Luxe, Newport II.
Puch Maxi fork top plates
L for bars-with-stem $15 – $10
R for clamp-on bars $35 – $30
2. $25 straight, clean, but pitted
3. $25 straight, clean, but pitted
4. $10 straight, badly pitted
5. $20 straight, clean, pitted
6. $20 straight, clean, pitted
7. $10 straight, badly pitted
8. $15 straight, but pitted
9. $45 straight, nice, some pitting
10. $50 straight, almost no pitting
11. $60 straight, no pitting, like new
12. $25 straight, dark blue sparkle
1985 Puch Maxi,
with tall bars
Puch tall bars
321..432..3011 N/A used scratched
xxx thickness ∼7/8″ 0.866″ 22.0 mm
xxxxxxx width 25.7
xxxxxx height 10.6
xxxxxxxx rise 10.3
xclamp length 3.5
control length 6.0
xxxx pull back 4.1
These bars are the same as Maxi bars but taller. They are on 1977-78 Sport, Sport MkII, and 1984-86 Maxi, Maxi Sport LS, Maxi Sport LS 2. They are heavy because of thick wall tubing.
1980 Magnum II
Puch tall cross bars
321..832..3011 $25-$35 used pitted
xxx thickness ∼7/8″ 0.862″ (21.9mm)
xxxxxxx width 25.7
xxxxxx height 10.6
xxxxxxxx rise 10.3
xclamp length 3.5
control length 6.0
xxxx pull back 4.5
These bars are the same as tall bars, but have a curved crossbar. They are on 1979-86 Sport, Sport MkII and 1980 Magnum II.
1978 Magnum MkII
Puch Magnum cross bars
321..132.8012 N/A
xxx thickness ∼7/8″ 0.862″ (21.9mm)
xxxxxxx width 25″
xxxxxx height 8.6
xxxxxxxx rise 8.4
xclamp length 3.5
control length 6.0
xxxx pull back 4.3
These bars are similar to Maxi bars, but shorter and with a curved crossbar. They are on 1978-79 Magnum XK, Magnum MkII.
1980 Sparta Buddy
Sparta handlebars, 8 available, from
$20 scuffed or faded, to $60 like new
xxx thickness ∼7/8″ 0.871″ (22.1mm)
xxxxxxx width 22.8
xxxxxx height 6.3
xxxxxxxx rise 7.3
xclamp length 3.5
control length 6.0
xxxx pull back 5.6
There are several mopeds with these handlebars: Sparta Foxi GT, Sparta Buddy, Sparta Lucky, Sparta Flying Dutchman, and others. These bars are the same as Batavus VA, Batavus Starflite, Batavus Regency bars, but with more pullback. They are made in Holland with high quality chrome that resists rusting.
1979-86 Tomos controls
(made by Magura)
1986-91 Tomos controls
(made by Domino)
1992-08 Tomos controls
(made by HR)
< These Tomos controls do not have a post, so the handlebar does not need holes.
2001-07 Tomos controls
(made by Domino)
2008-13 Tomos controls
(made by TBS)
< These Tomos controls have a post that goes into a hole in the handlebar. When changing handlebars, holes have to be drilled. The holes have to be in a particular place to make the levers the same, and at the correct angle.
1979 Tomos Bullet
Tomos 1974-1979 bars with stem
209.178 $45 used (shown)
xxx thickness ∼7/8″ 0.867″ (22.0mm)
xxxxxxx width 23.4
xxxxxx height 7.0
xxxxxxxx rise 6.8
xclamp length —-
control length 6.0
xxxx pull back 3.2
This stem type handlebar is what bicycles have. Older mopeds were more like bicycles. The stem can be positioned to make the bars higher or lower.
1979-1991 Tomos bars chrome
214810 $20 rusty, to $60 almost new
1987 Tomos Bullet
xxx thickness ∼7/8″ 0.867″ (22.0mm)
xxxxxxx width 24.3
xxxxxx height 7.6
xxxxxxxx rise 7.0
xclamp length 3.5
control length 6.5
xxxx pull back 3.8
1985 Golden Bullet
Tomos 1985-08 bars black
222888 N/A new (no holes)
222888 $13-$18 used
xxx thickness ∼7/8″ 0.0875″ (22.2mm)
xxxxxx width 24″
xxxxxx height 7.5
xxxxxxxx rise 7.9
xclamp length 4.0
control length 6.0
xxxx pull back 3.7
These bars do not have the holes for 2008-13 controls.
2010 Tomos ST
Tomos 2008-13 bars black
242199 N/A new (with holes)
242199 $12-$25 used
xxx thickness ∼7/8″ 0.0875″ (22.2mm)
xxxxxx width 24″
xxxxxx height 7.5
xxxxxxxx rise 7.9
xclamp length 4.0
control length 6.0
xxxx pull back 3.7
These bars have the holes for late-model Domino or TBS controls.
Tomos Streetmate bars chrome
236416 $30 used (with holes)
2005-12 Streetmate
xxx thickness ∼7/8″ 0.0872″ (22.2mm)
xxxxxx width 26.2″
xxxxxx height 4.2
xxxxxxxx rise 5.6
xclamp length 4.3
control length 7.7
xxxx pull back 5.7
These have holes for late Domino or TBS controls.
Tomos Revival bars chrome
242042 $40 (with holes)
2002-12 Tomos Revival
xxx thickness ∼7/8″ 0.0872″ (22.2mm)
xxxxxx width 25.0″
xxxxxx height 6.6
xxxxxxxx rise 8.1
xclamp length 4.3
control length 7.5
xxxx pull back 6.7
These have holes for late Domino or TBS controls.
updated 2022-01
Identification and Dating: Original reflectors have to comply with safety standards in effect at the time they were made. The compliance markings that are molded into the front plastic give a clue to when and where the vehicle was made. The vehicle is always made after the compliance standard, usually many years later. Original tail lights and head lights also have compliance standards that can be used in identification and dating.
Ink stamps: Some reflectors also have an ink stamp on the back indicating the date that the reflector was made. The date the reflector was made is usually many years after the compliance date.
SAE Society of Automotive Engineers is a USA based standards organization that now is worldwide and called SAE International.
UNECE United Nations Economic Commision for Europe makes worldwide standards for automotive equipment and other things. The UNECE “E” number, with a circle around it, on the reflector indicates compliance for a particular country. E1 is Germany, E2 is France, E3 is Italy, … E11 is England, E12 is Austria and 59 other countries worldwide. See country codes for UN reg. 3
JIS Japan Industry Standards are separate from Europe. East Asian countries like Taiwan, China and Korea use Japan standards. So reflectors made in those countries do not have an “E” number.
01. $2.00 foam cushion Puch 901.3956
02. none ∅4 speed nut Puch 900.3650
03. none ∅4 speed nut Piaggio 181351
04. $2.00 ∅4 speed nut substitute SPnut4, replaces 2, 3
05. $1.50 ∅4 self-threading nut STnut4, replaces 2, 3
06. none ∅5 speed nut CEV 19346
07. $2.50 ∅5 speed nut Puch 902.4657
08. $1.50 ∅5 speed nut substitute SPnut5, replaces 5, 6
09. $1.50 ∅5 self-threading cap nut STcap5, replaces 5, 6
10. $1.50 ∅5 self-threading nut STnut5, replaces 5, 6
11. $1.00 ∅6 self-threading cap nut STcap6, too big for reflectors
Speed nuts: Nuts normally screw on, but speed nuts push on. So they should more properly be called “push-on fasteners”. Once “on” they cannot be removed, except by using a dental pick tool to pry and bend back each of the inner petals.
Self-threading nuts (thread cutting nuts) screw on to plastic posts. They can be removed easily, but should not be tightened as much as a normal nut that size.
Broken posts: It is difficult to remove speed nuts without breaking the plastic post. Because of that, many used reflectors have their posts broken off. When that happens the reflector can be re-used by drilling a hole where the post was and using a small screw and nut, instead of the post and speed nut.
Cushions: All of the major moped brands that have reflectors attached by speed nuts use cushions under the speed nut, except Vespa (Piaggio). The cushions protect the posts from breaking and reduce the damaging or annoying effects of vibration.
AMF 140, 130, 120, 110
Meets SAE A (70), (73), (74)
U.S. D.O.T. safety standards.
AMF front reflectors
AMF rear reflectors
1978-79 AMF Roadmaster 110
Gem 90 with post AMF MP-0020-a amber
$11 new, SAE A 74, ∅60 x 7
fastened by ∅5 self-threading wing nut
front says Gem 90 SAE-A-74 DOT
rear says Gem 108 P SAE A 73 DOT
1978-81 AMF Roadmaster 110, 120, 130
Gem 90 with hole AMF MP-0021-a red
none, SAE A 73, ∅60 x 7
fastened by ∅6 center bolt and nut
front says Gem 90 SAE-A-73 DOT
1980-81 AMF Roadmaster 110, 120, 130
Gem 90 with post AMF MP-0021-b red
$16 new, SAE A 74, ∅60 x 7
fastened by ∅5 self-threading wing nut
front says Gem 90 SAE-A-74 DOT
rear says Gem 108 P SAE A 73 DOT
1980-83 AMF Roadmaster 110, 120, 130, 140
Gem 90 with hole AMF MP-0259-a amber
$11 new, SAE A 73, ∅60 x 7
fastened by ∅6 center bolt and nut
front says Gem 90 SAE-A-73 DOT
rear: Gem 108 P SAE A 73 DOT, US pat#’s, Chicago
1980-83 AMF Roadmaster some 120, 130, 140
Sate-Lite 25 with hole AMF MP-0259-a amber
$11 new, SAE A 70, ∅56 x 6
fastened by ∅6 center bolt and nut
front says Sate-Lite 25 DOT SAE-A-70
rear says nothing
1980-83 AMF Roadmaster 140
Sate-Lite 20 with post AMF MP-0259-b red
$22 new, SAE A 70, ∅58 x 5
fastened by ∅5 self-threading wing nut
front says Sate-Lite 20 DOT Chicago SAE-A-70
rear says nothing
1980-83 AMF Roadmaster 140, some 110
Gem 90 with post AMF MP-0259-c red
none, SAE A 74, ∅60 x 7
fastened by ∅5 self-threading wing nut
front says Gem 90 SAE-A-74 DOT
rear says Gem 108 P SAE A 73 DOT
AMF reflectors were sold in replacement sets.
Some replacements are different than originals.
MP-0020 front reflector set (2 piece) for 110, 120, 130
a. amber/black, Gem 90 with plastic post
a. amber/black, Gem 90 with plastic post
MP-0021 rear reflector set (3 piece) for 110, 120, 130
a. red/black Gem 90 with center hole
a. red/black Gem 90 with center hole
b. red/white Gem 90 with plastic post
MP-0259 front and rear reflector set (5 piece) for 140
a. amber/black Gem 90 with center hole
a. amber/black Gem 90 with center hole
b. red/black Sate Lite 20, offset post
b. red/black Sate Lite 20, offset post
c. red/black Gem 90 with plastic post
1977 Batavus
Meets SAE A (1971)
and E3 standards.
1973-76 Batavus and many others
CEV 174 Batavus amber
none used, SAE A 71, 49 x 62 x 10
long aluminum bracket ∅6 hole
fastened by ∅4 speed nuts, metal frame
1975-76 Batavus and others
CEV 174 same as Puch 413.253.1760 red
none new, SAE A 71, 49 x 62 x 10
fastened by ∅4 speed nuts, metal frame
substitute speed nut $2.00 cushion $2 each
1976-80 Batavus and many others
CEV 174 CEV 04828 amber
$12 used, SAE A 71, 50 x 64 x 9.5
long aluminum bracket ∅6 hole
fastened permanently, plastic frame
1976-78 Batavus and others
CEV 174 same as Puch 413.253.1760 red
$29 new, SAE A 71, 49 x 62 x 10
fastened by ∅5 speed nuts
substitute speed nut $1.50 cushion $2 each
1978 Cimatti
Meets SAE A (1971)
and E3 standards.
1975-76 CEV 174 Cimatti 12-60-54 amber
none used, SAE A 71, 49 x 62 x 10
fastened by ∅4 speed nuts, metal frame
requires short steel bracket
subst. speed nut $2.00 cushion $2 each
1977-78 CEV 174 Cimatti amber
$16 used, SAE A 71, 50 x 64 x 9.5
fastened by ∅5 speed nuts, plastic frame
with short steel bracket
subst. speed nut $1.50 cushion $2 each
1976 Columbia
Meets SAE A (1971) standard.
1976-77 Gulco 24 Columbia amber
$14 used, SAE A 71, ∅58 x 6 mm
fastened by #10-24 threaded post and nut
front says Gulco 24 (Gulco) SAE A-71, rear says
Bright Star Ind Inc made in USA (Gulco) No. 222.2
1977-80 Gulco 24 Columbia 730-0114 amber
$14 used, SAE A 71, ∅58 x 7 mm
fastened by #10-24 threaded post and nut
front says Gulco 24 (Gulco) SAE A-71, rear says
Bright Star Ind Inc made in USA (Gulco) No. 224
’80 Derbi
Meets SAE A (1977)
and E3 standards.
CEV 218 Derbi amber
$12 new, SAE A 77, 94 x 27 x 6.5 mm
steel bracket ∅12 hole
mounts to fork top
1977 Garelli
Meets SAE A (1971)
and E3 standards.
CEV 174 Garelli 506351.7033 amber
$14 used, SAE A 71, 50 x 64 x 9.5
short steel bracket, ∅6 hole with lip
goes outside of headlight mount
CEV 218 CEV 04924 amber
none SAE A 77, 94 x 27 x 6.5
fastened by ∅5 speed nuts
for ’84-85 Monza GT
’80 General
Meets SAE A (1970’s)
Cat Eye RR-210-8 General amber
$9 new, $7 used SAE A, ∅58 x 10
fastened by ∅6 screw post and nut
says Cat Eye RR-210-8 SAE-A DOT Japan
white rear says Cat Eye 210-RR-WZ
Stratolite 89 late General amber
$15 used SAE A, ∅60 x 8 M5 screw post
says Stratolite No. 89 SAE A
back says Miro Flex 330
exact copy of Stanley RR501Y
Stratolite 89-S amber
$8 new SAE A, ∅55 x 6
says Stratolite No. 89-S SAE A
plain back, not peel and stick
attaches by adhesive
Stratolite 89 red
$15 used SAE A, ∅60 x 8 M5 screw post
says Stratolite No. 89 SAE A
back says Miro Flex 330
exact copy of Stanley RR501
Stratolite 7⊗1 amber
1978 Honda
Meets SAE A (1971)
and JS R-168, R-169
Stanley RR501Y Honda amber
$15 used SAE A 71, ∅57 x 12
says Stanley RR501Y SAE A 71
says AU40LIA Japan Θ R-168
back says Stanley 072-0170 Japan
Stanley RR501 Honda NC50, Yamaha QT50 red
$15 used SAE A 71, ∅60 x 8
says Stanley RR501 SAE A 71 IATPEI81
says AU40LIA Japan Θ R-169
back says Stanley 072-042 Japan
1980 Indian
Meets SAE A (1970’s)
Cat Eye RR-210-8 Indian F146-00-50 amber
$26 new, SAE A, ∅58 x 10 use General (above)
fastened by ∅6 screw post and nut
says Cat Eye RR-210-8 SAE-A DOT Japan
black rear says Cat Eye 210-RR-WZ
1977 Lazer
Meets SAE A (1970’s)
and JS 8434
Cat Eye RR-210-6 Lazer 1150-8492 amber
$16 new, SAE A, ∅58 x 6
fastened by ∅6 screw post and nut
says Cat Eye RR-210-6 SAE-A Japan JS 8434
alum. rear says Cat Eye RR-210-A made in Japan
Cat Eye RR-210-6 1970’s bicycles amber
$11 nice-used, SAE A, ∅58 x 6
fastened by right angle bracket with ∅5 hole
says Cat Eye RR-210-6 SAE-A Japan JS 8434
alum. rear says Cat Eye RR-210-A-2 made in Japan
’78 Motron
Meets SAE A (1971)
and E3 standards.
CEV 174 unidentified amber
none used, SAE A 71, 49 x 62 x 10
fastened by ∅4 speed nuts, metal frame
with 30-35 mm clamp mount
subst. speed nut $2.00 cushion $2 each
CEV 174 CEV 03240 amber
none SAE A 71, 48 x 62 x 8
fastened by adhesive
used on Peugeot 103
.
CEV 174 CEV 03240.1 red
none SAE A 71, 48 x 62 x 8
fastened by adhesive
used on 9350 rear light
.
CEV 174 CEV 04828.1 red
$15 new, SAE A 71, 50 x 64 x 9.5
aluminum bracket ∅6 hole
mounts to rear luggage rack
.
CEV 174 unidentified amber
$15 new, SAE A 71, 50 x 64 x 9.5
short aluminum bracket
mounts to headlight sides
.
CEV 174 unidentified amber
$16 used, SAE A 71, 50 x 64 x 9.5
flat triangle steel bracket ∅10 hole
goes outside of headlight mount
’77 Motobecane
SAE B (63), A (69) (72)
E11, or BS 2515 (1954).
Seima 2022 Motobecane red
$24 used, SAE B 63, ∅56 x 10
attached by M5 screw post and nut
aluminum shell, older version
this one has a date stamp 1975
Lucas RER 14 Motobecane 53439 amber
$9 used, $14 new, SAE A 69, ∅57 x 8 mm
attached by center screw post, also says
LUCAS ENGLAND BS 2515 GRADE 1 2 125 3169
also on ’60’s-70’s English motor vehicles
Lucas RER 14 Motobecane 53440 red
none SAE A 69, ∅57 x 8 mm
attached by center screw post, also says
LUCAS ENGLAND SAE A 69 2.125 E11 3169
this one has a date stamp 1976
Seima 2022T Motobecane 53440 red
$16-22 used, $28 new SAE A 72, ∅56 x 10
attached by M5 screw post and nut
aluminum shell
Lucas RER 22 Motobecane red
A $16-12 red reflector SAE A 69
B $12– 8 chrome bezel
C $10– 7 mount for ULO tail light
AB $26-18 reflector and bezel
ABC $30-22 reflector, bezel and mount
Lucas RER 22, Seima 2022T
$35 used, Motobecane red
SAE A 69, A72 and E11
mounts to ULO 250 tail light
1978 Peugeot
SAE A (1966?), A (1971)
and E3 standards.
Peugeot 102 SP, 103 L2 (U1,U2), 103 SP
ULO 14970R Peugeot 60325 amber
$14 new bare, SAE A 6, ∅78 x 7
$16 used with bracket
$7 – $4 56396 steel bracket ∅8 hole
$1.50 M5 x 16 bolt, nylock nut, washer
Peugeot 103 L2 (U3), 103 LS, 103 LVS
CEV 174 Peugeot 56395 amber
SAE A 71, 50 x 64 x 9.5
$35 new, $24 used (both with bracket)
$7 – $4 56396 steel bracket ∅8 hole
1975 Puch
Meets SAE A (1971) or A (1972),
and E3 or E12 standards.
1972 to 05/77
CEV 174 Puch 413.153.1760 amber
none used, SAE A 71, 49 x 62 x 10 1972 to 05/76
fastened by ∅4 speed nuts, metal frame
substitute speed nut $2.00 cushion $2 each
1972 to 05/77
CEV 174 Puch 413.253.1760 red
none new, SAE A 71, 49 x 62 x 10
fastened by ∅4 speed nuts, metal frame
substitute speed nut $2.00 cushion $2 each
05/76 to 12/77
CEV 174 Puch 413.153.1760 amber
$26 new, SAE A 71, 49 x 62 x 10
fastened by ∅5 speed nuts
substitute speed nut $1.50 cushion $2 each
05/76 to 12/77
CEV 174 Puch 413.253.1760 red
none new, SAE A 71, 49 x 62 x 10
fastened by ∅5 speed nuts
substitute speed nut $1.50 cushion $2 each
1978-86
ZKW 058 Puch 349.153.8761 amber
$26 new, $19 used SAE A 72, 66 x 45 x 8
says I E12 3010 zkw 068.08.000.00
902.4657 ∅5 speed nut $2.50 cushion $2 each
1978-86
ZKW 058 Puch 349.253.8761 red
$26 new, $19 used SAE A 72, 66 x 45 x 8
says I E12 3010 zkw 068.08.000.00
902.4657 ∅5 speed nut $2.50 cushion $2 each
’77 Foxi
Meets SAE A (1973) standards.
Verma 5122 Sparta amber
$23 used, SAE A 73, ∅60 x 8 mm
offset steel bracket ∅8 hole
goes outside of headlight mount
.
Verma 5122 Sparta red
$17 used, SAE A 73, ∅60 x 8 mm
offset steel bracket ∅8 hole
goes on a bracket below ULO tail light
for pre-’78 early tail light (no side refs.)
.
1980 Tomos
SAE A (1971), A (1977) or A (1992)
and E3 standards.
CEV 174 Tomos 211.962 & 963 amber
$17 used, SAE A 71, 50 x 64 x 9.5
offset triangle steel bracket ∅6 hole
used on 1976 Tomos Automatic (A3)
CEV 218 CEV 04931 amber
$12 new, SAE A 77, 94 x 27 x 6.5 mm
steel bracket ∅8 hole
mounts to fork top on ’78-91 Tomos
EIE 91 Tomos 232766 red
SAE A 92, 90 x 20 x 5 mm
fastened by adhesive
was on ’02-12 Tomos Revival
1978 Vespa
Meets SAE A (1970)
and E2 standards.
CEV 174 Vespa 142861 amber
none used, SAE A 71, 49 x 62 x 10
fastened by ∅4 speed nuts, metal frame
original had no cushions
1974-77 Vespa Ciao C7N and C7E
CEV 174 mounted on fork
142861 $19.0 used reflector, metal frame
143245 none fork mount rubber
SPnut4 $2.00 substitute ∅4 speed nut
Seima 2038T Vespa 152897 amber
$14 new, SAE A 71, 63 x 34 x 7
fastened by ∅4 speed nuts
original had no cushions
1977-80 Vespa Ciao and Bravo
Seima 2038T mounted on headlight
152897 $14.0 new reflector
152897 $20.0 with threaded posts,
152897 $00.0 M4 nuts and cushions
152898 none rubber mount ’77 (some)
161274 none rubber mount 1977-80
161274 $22.0 rubber mount replacement (each)
SPnut4 $2.00 substitute speed nut
1978-83 Vespa Grande
Seima 2038T mounted on fork
152897 $14.0 new reflector
307097 $9.00 new fork mount
307147 $4.00 used clamp
SPnut4 $2.00 substitute speed nut
1979-86 Si, 80-86 Ciao PX, 1980 Bravo
Seima 2066 mounted on headlight
189913 $14 new, SAE A 69, 56 x 45 x 12
189914 none bracket inside headlight
SPnut4 $2.00 substitute speed nut
original had no cushions
CEV 174 Vespa amber
none SAE A 71, 50 x 64 x 9.5
fastened by ∅5 speed nuts
with short steel bracket
SPnut5 $1.50 substitute speed nut
fork assy used straight $100 Puch Maxi
fork assy used straight $100 Motobecane
fork assy used straight $100 Tomos 75-85
fork assy used straight $100 Batavus 76-78
fork assy used straight $100 Peugeot 103 LVS 76-80
fork assy used straight none Peugeot 103 SP 78-80 longer
many other used straight forks
fork tube new $52.0 Peugeot 103 LVS 76-80
fork tube new $65.0 Peugeot 103 SP 78-80 longer
fork tube new $48.0 Tomos A3/A35 86-06
fork tube used w/bushings $48.0 Puch Maxi 75-86
bushing used $19.0 scarce Puch Maxi 75-86
Clamp-on headlight mounts
For 28-30 mm fork tubes:
$17/pair or $9 each for Version 1 with EBR logo, no holes
$19/pair or $10 each for Version 2 with turn signal holes
For 26mm fork tubes:
The 28-30 brackets can work on 26mm fork tubes, with a 1.5mm rubber sleeve under the clamp.
The rubber sleeve also helps reduce vibration of the head light.
$2/pair or $1 each for 1.5mm thick large black rubber washers used as sleeves.
inner outer
tube tube each
diam diam price bike model retained by
24.0 30.0 $16.0 Tomos ’74-86 2 holes 207973
24.0 35.5 $14.0 Indian AMI-50 lip 38.2
25.0 36.0 $6.00 treatland
26.0 41.2 $20.0 General
26.0 33.2 $19.0 Peugeot 0000 no lip
27.0 32.0 $10.0 unknown used, maybe shrunk from 28-33
28.0 33.6 $10.0 Tomos ’86-06 lip 35.1 219226
28.0 33.0 $20.0 Garelli 000000 lip 35.7
28.0 35.0 none Concord XKE no lip
Indian AMI-50 ’78-81 fork boot
Tomos 219226 ’86-91 fork boot
Garelli fork boot 28.0 x 33.0
Benelli for boot 28.0 x 33.0
Myrons has original swing arms. They are yet displayed or listed. Use email to inquire.
Welcome. Shocks are priced and sold by each unless stated.
Price Range: Dark green price is for used in rough condition. Bright green price is for new condition. Some shocks are available in various used states, ranging from “rough” to “like new”. So the dark green is the lower limit, and the bright green is the upper limit, of the price range. Most will be in between the low and the high, and priced accordingly.
N/A means Not Available.
Damping: Most of these rear shocks do not have hydraulic fluid (oil) damping. Since most are pure springs with no damping, they are very bouncy. Certain high quality ones have some damping, and are less bouncy.
Length: The length is from center of hole to center of hole.
Width: Besides length and eyelet sizes, some shocks are limited in width by the frame or body panels. On Motobecane for example, you can’t put wider shocks even with the same length and eyelets (unless some bodywork is cut off).
Stiffness: You can’t tell how strong a spring is, until you squeeze it. Heavier people need heavier springs, and vice versa.
Travel: Mopeds are for going slow on smooth roads, and so do not need much suspension travel (how far the wheels can move up or down when hitting a big bump). More travel makes the bike taller, but more able to handle bumps. 2 to 4 inches is typical.
11.0″ 275 x8x8 $15-70
Motobecane 1976-81 original
11.0″ 275 x8x8 $35-70
Motobecane factory option
Motobecane upper shock bolt: M8-1.0 x 45 (can be 1.25 thread)
Motobecane lower shock bolt: M8-1.0 x 38 (must be 1.00), inner spacer ∅8 x 5
11.8″ 300 x8x8 $35-65
Puch Maxi original
12.4″ 315 x8x8 $45
Sachs Balboa has shocks similar to Puch Maxi but longer 315 mm.
JC Penney Pinto shocks are the same as Puch but longer 320mm.
Sears Free Spirit (standard) and Puch Cobra shocks are the same as Puch but way longer 345mm.
12.6″ 320 x10x8 $20-70
Peugeot 51324 (aluminum)
1975-77 Peugeot 103 LVS
12.6″ 320 x10x8 $35-80
Peugeot 51324 (chrome)
1978-83 Peugeot 103 LVS
made in Italy by CiTe
13.9″ 355 x10x8 N/A
Peugeot 59763
1978-81 Peugeot 103 SP
Peugeot 103 has a upper 10mm eyelet and a lower 8mm. The lower 8mm bolt can be replaced with a 10mm one, after drilling the frame hole, to accept a more common replacement shock with both 10mm eyelets.
9.9″ 250 x 10 x 10 $20-45
Vespa (Piaggio)
1978-86 Vespa Grande
10.3″ 263 x 10 x 10 $20 ea
1976-80 Cimatti City Bike
11″ 280 x10x10 $15-40
Tomos 207049
1977-91 Tomos Bullet
11.0″ 280 x10x10 N/A
Tomos 219188 (early)
1979-85 Silver Bullet
11″ 280 x10x10 N/A
Tomos 219188 (late)
86-91 Golden Bullet
11.0″ 280 x10x10 $40
Tomos 227236 (white)
1992-95 most models
11.0″ 280 x10x10 $35
Tomos 229357 (grey)
1996-07 most models
11.0″ 280 x10x10 $35
Tomos 227172 (early)
1992-07 some models
11.0″ 280 x10x10 $45
Tomos 227172 (late)
2007-13 most models
11.0″ 280 x10x10 $40
aftermarket
11.4″ 290 x10x10 $30
original replacement
1977-80 Gitane
11.8″ 300 x10x10 $30
Tomos 232713 (wide)
’01-13 Revival, S.mate
12.7″ 320 x10x10 $55
Tomos 221032 (performance)
’08-13 Tomos Streetmate-R
<< This Tomos 221032 shock has more travel, more precision, and other features that make it outperform most other moped shocks. It has some damping, more than other moped shocks, but not as much as a true hydraulic shock. It is also adjustable in spring preload (stiffness) for different rider weights. The longer travel makes bumps feel smaller.
12.7″ 320 x10x10 $80/pair
aftermarket
12.7″ 320 x10x10 N/A
Columbia 745-0168 (sheet-metal frame)
13.0″ 330 x10x10 N/A
Columbia 745-0175 (mono-tube frame)
13.6″ 350 x10x10 $30-60
1976-84 Sparta Foxi, Buddy
12.0″ 305 x12x12 N/A
aftermarket
For Puch Maxi replacements, use these but with the original 8 x 12mm spacer tubes from the old shocks placed inside the 12mm eyelets.
M y r o n s V i n t a g e M o p e d S h o c k s R a c k
Row 1 Left
1 09.2″ 235 x 8 x 8 Kreidler
2 11.0″ 280 x 8 x 8 Motobecane
3 11.0″ 280 x 8 x 8 Motobecane
4 11.7″ 295 x 8 x 8 Peugeot 102
5 12.0″ 305 x 8 x 8 Puch Maxi
6 ??.?” xxx x 8 x 8 ????????? xxx x 8 x 8 ?????x??? ??????
7
Row 1 Right
1 12.0″ 305 x 8 x 8 Puch Maxi (coil)x
2 12.5″ 315 x 8 x 8 xxxxxxxxxx xxxx
3 ??.?” xxx x 8 x 8 ????????? ??????
4 13.7″ 345 x 8 x 8 Free Spirit (red)
5 13.9″ 350 x 8 x 8 Puch Magnum XK x
6 14.1″ 360 x 8 x 8 Puch Magnum MKII ??.?” xxx x 8 x 8 ?????x??? ??????
7 14.1″ 360 x 8 x 8 same but lightweight
Row 2 Left
1 09.9″ 250 x10x10 Vespa Grande????????? ????
2 10.2″ 260 x10x10 Garelli (short)
3 10.3″ 263 x10x10 Cimatti (short)
4 10.5″ 267 x10x10 Italian (CiTe)
5 10.7″ 275 x10x10 Cimatti (long)
6 11.0″ 280 x10x10 Tomos Bullet
7 11.0″ 280 x10x10 Tomos Targa
???????? ??????
Row 2 Right
1 11.2″ 285 x10x10 ?????????? ????
2 ??.?” xxx x10x10 ?????????? ????
3 11.2″ 285 x10x10 Honda PA50 xx
4 11.5″ 290 x10x10 Gitane chrome
5 11.8″ 300 x10x10 Garelli (long)x
6 11.8″ 300 x10x10 Batavus HS50
7 11.8″ 300 x10x10 Batavus Reg.
Row 3 Left
1 12.0″ 305 x10x10 Garelli (long) ?
2 12.0″ 305 x10 x 8 Peugeot 103
3 12.1″ 310 x10x10 Trac
4 12.1″ 310 x10x10 General
5 12.2″ 310 x10x10 Indian
6 12.2″ 310 x12x12 motorcycle
7 13.7″ 350 x10x 8
Row 3 Right
1 13.6″ 350 x10x10 Sparta Foxi ????
2 13.9″ 355 x10 x 8 Peugeot 103SP
3 13.6″ 345 x12x12 motorcycle ????
4 13.0″ 330 x12x12 motorcycle ????
5 12.6″ 320 x12x12 motorcycle ????
6 12.6″ 320 x12x10 Honda Trail 90
7 11.1″ 283 x12x12 lightweight xxx
Not shown
1 10.2″ 260 x10x10 Vespa Bravo
More shocks are with their brands and not shown here, yet…
There are a few more seats available not listed here.
Solo seat: Standard bicycle seats have a 7/8″=22.2 mm clamp. Some 24-35 mm moped seat poles have a 22.2 mm top section. Those can accept standard bicycle seats. Other moped seat poles are a straight 24-26 all the way, too big for a bike seat clamp.
4904 beach cruiser bicycle seat w/springs $23.0
10.5 by 10.5 inch, dual coil spring suspension
fits any moped with a 7/8″ seat pole top end
seat single Peugeot new with 1″ post $45 fits Peugeot 103 and others with 1″ hole
updated 2020-03
This is a special size gas cap, only found only on some Trac models:
1983-90 Clipper, 1982-86 Eagle, 1984-88 Escot, 1984-89 Liberty, 1986-89 Olympic, and maybe 1988-90 Blitz.
It is part number 21204 or 17620-M56-8900.
A 30mm quarter turn cap is too big and cannot be made to fit by simple grinding.
1a qtr-turn 27 thin wing $32
Trac Liberty step-thru
1984-89 Trac Liberty
quarter turn 27mm
1984-89 Trac Liberty
35mm wing to wing
For quarter-turn gas caps, the named size is the inner diameter of the filler neck it fits into. The actual size of the gas cap is a little less than the named size. That’s why a 28mm gas cap on the internet is called 30mm here, or a 38 is called 40 here.
2a q-turn 30 chrome $10
generic 206401
qtr-turn 30mm
chrome, top view
2b Rubber washer $1
30 x 50 x 2mm for
most 30mm qtr-turn
Rubber replaces cork
on most 30mm gas lids
2c q-turn 30 black $17
Tomos 222145
1985-93 Golden Bullet
2d q-turn 30 alum $15
1974-78 Tomos Bullet
2e qtr-turn 30 alum.
add 2% oil to gas $12
2f premix 3oz of oil per
gallon of gas $15
1978 Puch Maxi
qtr-turn 30mm
1976 Puch Maxi tank
push-in 30mm
1978 Garelli Super Sport tank
quarter-turn 30mm gas cap
(77 and some 78 are screw-on)
2h qtr-turn 30 N/A
chrome locking, 2 keys
Tomos 229530
2i qtr-turn 30 new N/A
orig on 1978-on Garelli
2j qtr-turn 30mm new $60
Puch chrome with cup
2k qtr-turn 30mm $20-40
chrome Puch used
with oil measuring cup
2l qtr-turn 30 $15-30
aluminum Puch used
2m qtr-turn 30 $15-30
chrome Puch used
Some of these have thinner wings, and some have slightly different wings than “regular”.
3a qtr-turn 30mm used N/A
Honda NC50 Express
has vent on/off switch
3b qtr-turn 30 thin used $25
Honda PA50 Hobbit
has oil measuring cup
3c qtr-turn 30 used $15
Angel (TYM Taiwan)
slightly different wings
3d left, qtr-turn 30 thin $18
1970’s Suzuki, no gasket
qtr-turn 30 & 40 thin wing
L is 30mm with no gasket
R is 40 w/leather gasket
For quarter-turn gas caps, the named size is the inner diameter of the filler neck it fits into. The actual size of the gas cap is a little less than the named size. That’s why these are called 40mm here, but they are called 38mm elsewhere.
4a left, qtr-turn 40mm chrome $8
generic 632610 (right is 30mm)
4b qtr-turn 40mm black $15
Tomos 222785
1987-91 Golden Bullet TTLX
4c qtr-turn 40 used $25
Sears Free Spirit, Murray
4d qtr-turn 40 used $40
Sears, Murray with cup
4e qtr-turn 40 black locking N/A
Tomos 229545
1996-13 Tomos LX top tank
4f qtr-turn locking $17
Tomos 223840
1987-91 Bullet TT
4g qtr-turn 40 $20-$55
Puch Magnum
5a right, qtr-turn 40 $35
L is 1970′s Suzuki 30
R is 1970′s Japan 40
same ones bottom
L is 30 with no gasket
R is 40 w/leather gasket
5b qtr-turn 40 thin $35
1985-87 Trac Hawk
5c qtr-turn 40 thin $35
1986-88 Trac DH100
6a and 7a chrome
are the same on top
6a wide and 7a ext. are
very different on bottom
6a qtr-turn 40 wide wing $30
wings 46.9 x 12.7mm
regular wing at right
’79 Motobecane Sebring
qtr-turn 40 wide, lid 6a
Pacer top tank (some)
7a qtr-turn 60 external $30
chrome Peugeot TSM
qtr-turn 60mm external
view of external wings
Pacer top tank (some)
7b qtr-turn 60 external $30
black locking for TSM
7c qtr-turn 60 ext.
Peugeot TSM
6a stainless and 7a chrome
are the same on top
6a 40 wide and 7a external
are very different on bottom
1980 Peugeot TSM
q-turn 60 external
Vintage tank
qtr-turn 60 external
takes lid 7a
The early Vespa Ciao, 1967-68 up to frame #154099, had a light gray plastic 28mm push-in gas cap. Myrons does not have any, not even a photo.
After that it was a 32mm push-in.
The named size of push-in gas caps is the inner diameter of the filler neck, 30mm. The actual size is smaller, 28 or 29 so it can slide in. But the seal lip or rubber ring is bigger 31mm, so it can get squeezed as it pushes in.
9a push-in $12 30mm generic
9b push-in 30mm $20
pre-’78 Cimatti City Bike
(’78-on was qtr turn)
push-in 30mm, left: 9c Peugeot 103 original N/A
right: replacements plain and Esso $35
These shrink. Adding an o-ring 9d fixes that $2
9e push-in 30 $30
early Puch original
9f push-in 30mm N/A
early Hercules-Sachs P1, M4
later Sachs tanks had qtr-turn
9g push-in 30mm $40
’77-79 KTM Foxi Deluxe
KTM caps break easy
9h repaired but fragile $10
9g new kept in plastic bag
1978 Peugeot 103 tank
push in 30mm gas lid
1980 Peugeot 102 tank
30mm push-in improv lid
9i push-in 30mm N/A
locking for Avanti
9j push-in 30mm $25
with large teardrop top
Gitane Cricket (Testi)
9k push-in 30mm $25
Colombia Open Road
push-in 30 Colombia
left shrunk, right new
9l push-in 30mm $35 Peugeot locking gas cap
1985 General TE tank
30mm push in gas cap
The push-in gas caps 10a, 10c, 10d, 10f have a thick rubber ring that is made too large, 34-35mm. Right out of the package it is too big to enter a 32mm gas tank filler neck, even with grease and care. The rubber ring must be ground down to reduce the outer diameter to 33mm. This makes the price a few dollars more.
10a 32mm push-in $13
with rubber ring ground
to 33, to fit 32 correctly
(shown with no rubber)
5313-N with dip stick
push-in 32mm Derbi
some shrink to 30mm!
Derbi 8204140 gas lid
left 10b ’76-86 not shrunk $35
rt – ’86-89 shrunk to 30
1977-89 Derbi Variant
32mm push in lid
It’s amazing how much that Derbi gas cap shrank, from 32 to 30mm. And how the one from the newer model shrank, but the older model one did not. So a badly shrunken one could fit nicely on a Peugeot! Other soft plastic push-in gas caps with lips, not rubber rings, also shrink, like Peugeot. Only those 35 year old NOS ones that have been kept in a sealed plastic bag are not shrunk.
10c push-in 32mm $25
Tomos 232546
’02-09 Revival, Streetmate
after 09 was qtr-turn 30
includes proper 33 ring
10d Rubber ring (buna-N) 35mm not ground $3
fits Tomos and Garelli 32mm push in gas lids 10e with the outer surface ground down to 33 $9
L to R, no rubber, rubber not cut, rubber cut
10f push-in 32mm $35
early Garelli step-thru
(shown with no o-ring)
includes proper 33 ring
2005 Tomos Streetmate
with 32mm push in lid
until 2010 then qtr-turn
11a push-in 36mm N/A
Derbi Laguna, RD50
This fits Benelli G2, Moto Guzzi Robin and others.
12a push-in 40mm $14
1976-78 Gitane (Testi)
12b push-in 40mm $30
1970-83 Jawa step-thru
1979 General top tank
accepts 40mm push-in
Screw-on M30-1.75 external thread for Motobecane 40, 50
13a used with M logo, no dip stick none
13b new with M logo, with dip stick $32.0
13c new with vent switch with stick $21.0
13d used with vent switch no stick $15.0
13e new plastic M logo, w/dip stick $28.0
13f used plastic M logo no dip stick $19.0
1979 Motobecane 50V screw on male 30×1.75
tank ID is 28.5mm
Same MB tank cut away
inside view of fill hole
& center bulkhead wall
14a screw-on int 40×2
with PVC improv lid
1978 Ciao tank
PVC improv lid
M40x2 female PVC lid
made from a 1-1/4″
PVC threaded cap
sliced in half
14b screw-on int. 40×2
not vented $15
AMF Roadmaster with McCulloch rear engine
screw-on internal 40×2
L is white PVC improv
R is aluminum original
screw-on internal 40×2
PVC 1-1/4″ cap is 38.5 ID
fits 40×2 well, by luck!
14c screw-on 40×2 internal $32 cnc aluminum
1978 Vespa Bravo
screw-on M40x2 internal
1968 Lambretino
screw-on M40x2 internal
14e screw-on 40×1.75 external thread $35
white, for MB Model 7
14f screw-on M40x2 external $25
15a screw-on 42×1.5 int. $55
Garelli (not shrunk 40.5 id)
Garelli Super Sport screw-on
internal thread (female) lid
M42 x 1.5 thread
Garelli Super Sport
Concord XKE gas cap 41.6 mm at thread tops
15b screw-on 42×1.5 internal thread N/A with vent close switch ’77-79 Italjet Packaway
These gas lids are not shrunk because they were kept in a plastic bag for 40 years. Others that are shrunk are offered at half price. Those were exposed to the air for 40 years.
Almost all moped gas caps are vented. Some have a vent switch. When you transport the bike laying on it’s side, gasoline drips out of the air vent hole in the gas cap. With a vent switch you can close the vent hole during transport or storage, and open it during regular use.
16a M50-1.5 internal N/A
“FILL ONCE S.A.E. OIL 30
FOR EACH QT OF GAS”
M50-1.5 int. 48.5 id
for Demm & Wards
Wards Riverside
Demm Smily
16b M50-2.0 internal N/A
1980-88 Vespa Si
(bigger than Ciao)
1980-88 Vespa Si
This cap 16b has the 50mm thread tops on the tank, like 16a and 16c, but the pitch is in between those two.
16c M50-2.5 internal N/A
original on 1965 H.D. M50
1965 Harley Davidson M50 tank (Aermacchi)
M50-2.5 int.thread lid
This cap 16c looks similar to 16a, but threads are coarser. The ridges on top are evenly spaced, but on 16a they are in pairs.
1962? Sears Allstate tank
45mm bottle-cap gas lid
A Blitz gas can lid fits Sears Allstate tank.
A Sears Allstate gas cap fits Blitz gas can.
The 1956-65 Allstate Mo-Ped tank has bottle-cap type threads, not machine-type. The inside of the gas tank neck is 34.4. The thread diameter is 44.6. Each thread is 4.0 mm wide.
The 1961-66 Allstate Compact scooter also has this gas cap, as do most late-50’s and 60’s Puch mopeds and scooters.
1981 Medallion
’80 Columbia Medallion
The 1980-81 Columbia Medallion (top tank model) has a molded plastic tank like a gas can. The thread diameter is 54.7 mm (2.16 inch), for a 55 mm bottle-cap type screw-on gas lid.
18a pop-up clamp-on
for 45mm OD tank $28
Pacer Sport (Italtelai)
Baretta 22,44 (Piccoli)
Westwind (Spisni Lino)
Negrini Harvard
18b pop-up locking chrome
for General, Lazer top tank
with 2 keys, none available
18b keys 719 and 459 (copy) $7 each
More gas caps, not for sale, for your information:
60. screw-on 40mm
very coarse thread
for modern ATV
61. screw-on 50mm
very coarse thread
for modern ATV
62. screw-on 50mm
very coarse thread
for modern ATV
Modern ATV Lids
Gas caps come in 4 types. 1. Quarter turn, 2. Push in, 3. Screw on, 4. Pop up. Each type has different sizes.
30 and 40mm quarter turn “regular wing”, 40mm quarter turn “external wing”. Many other quarter turn wing styles are possible. Two other moped styles are nick named “thin wing” and “wide wing”.
Quarter turn has two “wings” on opposite sides that enter two slots in the gas tank lip. Then when the gas cap is rotated 90 degrees to the right, which is one fourth of a turn, it locks on and seals the outer edge by the spring tension in the wings. The spring has a certain amount of “travel” that allows the lid to work (seal) on a range of gas tank lip thicknesses, or as the rubber or cork gasket gets thin. But sometimes a thicker rubber washer is needed to get the wings to push harder and seal better. In the 30mm size an extra 2mm thick rubber is sold here, but not for 40mm, at this time.
Push in lid gas tanks have a smooth round wall, about as deep as it is wide. The lids are usually black plastic with thin flexible circular ridges that press against the wall. The entrance has a taper for easy operation. In the 1977 USA moped standards, push in gas lids were supposedly required to be quarter turn. Puch, Cimatti, Garelli, and Sachs switched from push-in to quarter-turn but not everyone else did. Again in 2010, quarter turn gas caps are mandated in the USA, this time not for safety reasons, but for environmental ones.
Myrons Mopeds Gas Caps, Class of 2013, click to enlarge.
Back row: Quarter turn L to R 27,30,40,40 mm external
Front row: Push-in 30,32,36,40, Screw-on, Misc and Pop-up
Screw on lid gas tanks have threads. The lid must be screwed on one or more full turns clockwise. The threads on the lid can be either female (internal) or male (external). Most modern screw on lids are more like bottle cap threads, more coarse than machine threads. Also the tops and bottoms of the threads have wide plateaus. Some are at right, not listed.
Pop up gas lids are generally on top tank mopeds and modern motorcycles. Turn the key or push the button and the lid pops open.
Vent Hole: All moped gas caps are “vented”. That means they have a tiny pinhole or channel that lets air get in or out. If the pinhole is blocked, after awhile a suction will develop, the gasoline supply will stop, especially with a full tank. They all have a vent design that prevents gasoline from shooting out, like a wall or a maze, but lets air get through. Some gas caps have a vent switch, “on” or open for riding, “off” or closed for transport and storage. All vented gas lids will leak gas if the tank is too full or leaned over too far.
Shrinkage: Unless they have been kept stored in an air tight bag, many of the vintage moped plastic gas caps shrink after 20 or 40 years. The Peugeot and Colombia black plastic push-in 30mm lids become 29 or 28mm. The 32mm late Derbi black plastic push-in lid becomes 30mm. The Garelli 42mm screw-on black plastic lid becomes 41 or 40. When a push in lid shrinks, it gets loose and falls off. One remedy for that is a “leash” made out of a twist tie. Another remedy is a thin rubber o-ring, but it’s hard to find the correct size. With push-in gas caps, the actual diameter will be slightly more, about 0.5 millimeter, than the tank hole inner diameter, to make a light press fit. So a 30mm lid should be 30.5mm wide, a 40 should be 40.5. With screw on male lids there can be shrinkage and the lid will still function, because it does not seal on the loose threads. But when a female (internal thread) screw-on lid gets smaller, it becomes tight and difficult or impossible to screw on.
