Welcome to Speedometers and speedo parts.
Speedo Basics: Speedometers on mopeds are all mechanical type, not electronic. A “driver” or “sender” on the front wheel rotates the cable. The cable, with a spinning wire inside, goes up to the speedometer “gauge” or “head”. Inside the head a spinning magnet moves the needle. An “odometer” or mileage meter is also driven by the cable, with gears. Either the speedometer or odometer can work without the other, but the both need the cable and driver to be working. So when both speed and miles don’t work, it’s usually caused by a broken cable, and sometimes the driver. If either the speedo or odo works, then the cable and driver must be good.
Speedo Families: There are several brands of moped speedometers: CEV (Italian), VDO (German), Huret (French), Veglia (Italian), plus other minor ones, Stewart Warner (USA), Tatung (Taiwan), Walker licensed by VDO (Spain), and maybe more. Each family has it’s own style of cable wire and cable end piece threads. So a CEV speedo requires a CEV speeedo cable, and a VDO speedo requires a VDO cable, pretty much. In the table below, all of the speedometer specifications and applications are listed. It is under construction…
CEV Speedometers
These are the vintage CEV speedometers for sale. They have all been cleaned, checked, and lubed. 15 out of 17 were originally frozen from “the old grease turning into glue”. It takes days or weeks and dozens of repeated applications of penetrating oil and rotation on a drill, before all of the stickiness is gone. If any stickiness is left behind, it can re-freeze a year later. A frozen speedo will cause the speedo cable to break right away. That is the main reason why 35 year old mopeds often have broken speedo cables. The other reason is the cable gets kinked or tangled.
diam color max tested dev from odometer glass/face # mileage mm back/text speed speed 23.8 avg condition condition price ========================================================================== 1 03297 60 dk blue/wht 40mph 24.0 +0.2 works: now 03298 used, cracked N/A 2 00002 60 dk blue/wht 40mph 10.0 -13.8 works: now 00003 reads very low $25 3 00001 60 dk blue/wht 40mph 22.5 -1.3 works: now 00002 new, perfect glass $75 4 00009 60 dk blue/wht 40mph 21.0 -2.8 frozen only speedo works $25 5 01062 60 dk blue/wht 40mph 25.0 +1.2 works: now 01063 used, good “glass” $75 6 00001 60 dk blue/wht 40mph 25.0 +1.2 works: now 00002 new, tiny scratches $65 7 00847 60 dk blue/wht 40mph 24.0 -0.8 works: now 00848 used, scratched bad N/A 8 00001 60 dk blue/wht 40mph 23.0 -1.8 works: now 00002 new, tiny scratches N/A 9 03751 60 dk blue/wht 60mph 25.0 +1.2 works: now 03752 used, good glass N/A 10 00000 48 white/black 40mph 26.0 +2.2 works: now 00001 new, smaller size N/A 11 00000 60 dk blue/wht 40mph 24.0 -0.8 works: now 00001 new in original box N/A 12 00001 60 dk blue/wht 40mph 23.5 -0.3 works: now 00002 new in original box $75 13 00001 60 dk blue/wht 40mph 24.0 +0.2 works: now 00002 new in original box $75 14 00000 60 dk blue/wht 40mph 20.5 -3.3 works: now 00001 new in original box $55 15 05182 60 black/white 40mph 25.0 +1.2 works: now 05183 has a small smudge $65 16 00995 60 black/white 40mph 25.0 +1.2 works: now 00996 slightly cloudy $65 17 00084 60 black/white 40mph 27.0 +3.2 works: now 00085 very good “glass” $80 xx 00367 60 dk blue/wht 40mph froze —- unknown for parts only $15 xx 00000 60 dk blue/wht 40mph froze —- unknown for parts only $15These CEV speedometers are all tested on the same drill, for comparison of speed accuracy. The odometer accuracy never varies – it either works or not. It takes up to 3 minutes at 20mph to click off one mile. Each speedometer is tested for at least 3 minutes, some over 10 minutes all together. Once all of the 17 tested speeds are retested and verified, an average speed can be calculated. First the highest and lowest are ignored. Then the remaining 15 test speeds are added up and the sum is divided by 15 to give 23.8 average. You can see that most of the speedos tested at 23, 24, or 25 mph. The accuracy is an important factor in determining the price. The condition of the glass, face, and needle are also important.
CEV Speedo Drivers
CEV# axle ratio mark side style cable zirk?
7121 11 18:10 121
7296 11 17:10 296 left x left x 2.0 w/ zirk long finger xxxx Motron 16″ MMI J103 Sebring 17″
7324 11 17:10 324 left x left x 2.0 w/ zirk short bent finger Cimatti 16″
7408 11 16:10 408 left x left x 1.8 w/ zirk short bent finger 1976 Tomos 16″
7416 12 16:10 416 right right 2.0 w/ zirk
———————————————————————————————
oooo 11 17:10 ooo right right 1.8 no zirk
oooo 12 17:10 ooo right right 1.8 no zirk
oooo 12 16:10 ooo left x left x 1.8 no zirk Tomos type
oooo 12 17:10 ooo left x left x 1.8 no zirk
1 turn of the wheel turns the cable 1.7 or 1.6 times. 16″ wheel turns more for the same distance, so it needs the 1.6 ratio.
CEV Speedo Cables
xx CEV# length lower end upper end
7804.575 22.6″ 1.75-1.85 1.85-1.95
7804.600 23.6″ 1.75-1.85 1.85-1.95
7804.650 25.6″ 1.75-1.85 1.85-1.95
7804.700 27.6″ 1.75-1.85 1.85-1.95
7804.750 29.5″ 1.75-1.85 1.85-1.95
7804.800 31.5″ 1.75-1.85 1.85-1.95
Derbi Speedometers
Derbi speedometers are made by Walker, under license by VDO. They are compatible with other VDO speedos on Puch, Sachs, Batavus, Sparta, Kreidler, and others. But they say “Derbi” on the face, so they are here in Derbi, rather than with the other VDO’s in Parts/By Type/Speedometers.
| Part # | # | ←pic#….Description | Price | Applications |
| ########### | ### | ################### | #### | ######################### |
| all the same! | Derbi Speedometers | Derbi 1976-1985 all models | ||
| 000.501.6010 | 1 | 10447 miles, new cond | $60 | test=16.5mph, worked good |
| continued … | flat rim original on TT | |||
| 000.501.6010 | 2 | 01953 miles, new cond | $70 | test=16.0mph, worked good |
| continued … | flat rim original on TT | |||
| 000.501.6010 | 3 | 05565 miles, fair cond | $30 | test=16.0mph, worked good |
| 000.501.6010 | 4 | 03702 miles, fair cond. | $30 | test=17.0mph, worked good |
| 000.501.6010 | 5 | 01944 miles, good cond | N/A | test=17.0mph, worked good |
| 000.501.6010 | 6 | 00038 miles, new cond | $80 | test=16.5mph, worked good |
| 000.501.6010 | 7 | 00001 miles, new cond | $90 | test=17.0mph, worked good |
| 000.501.6010 | 8 | 00124 miles, new cond | N/A | test=16.5mph, worked good |
| 000.501.6010 | 9 | 00933 miles, good cond | $55 | test=17.5mph, worked good |
| continued … | shown with rubber visor ring | |||
| 000.501.6010 | 10 | 04376 miles, fair cond. | $35 | test=16.0mph, worked good |
| 000.501.6010 | 11 | 16748 miles, bad needle | $15 | test=18.0mph, worked good |
| continued … | shown with rubber visor ring | |||
| 000.821.6830 | rubber visor ring | $10 | optional |
Under construction …
Derbi SL, SLE, TT Speedometer Cables: Many Derbi speedometer cables have a kink below the speedometer that causes the inner wire to break repeatedly. The kink is from the back of the “pancake” headlight pushing the speedo cable back. There is no easy remedy. As with any speedometer cable, any kink or sudden change in direction will eventually cause the inner cable wire to break there, because as it rotates it is being bent back and forth.
Huret Speedometers
These are on Garelli, Motobecane and others. They all freeze up solid from the grease inside turning into sticky tar.
VDO Speedometers
These are all of Myrons VDO speedometer drivers. They are just listed here to help learn what the markings mean.
Style means what side of the bike would make the cable exit below the axle and towards the rear of the bike. This can be told from a distance. Left style looks like a letter “d”. Right style looks like a letter “b”.
Side means what side of the bike would make the cable rotate clockwise, viewed from above. This internal difference is from the direction the helical teeth wind around the worm gear. Other than by markings, this can only be determined by rotating the wheel prongs and observing the cable rotation.
Metal Drivers (made up to 4/1978)
od xx 00/1 date make rim side style part number
21 LH 27/1 11/77 Columbia 17″ left left open with finger, 1/2″ hole
21 RV 23/1 05/77 Puch xxx 17″ right left shielded
21 RV 23/1 10/77 Puch xxx 17″ right left shielded
21 RV 23/1 07/77 Puch xxx 17″ right left shielded
21 RV 23/1 04/78 Puch xxx 17″ right left shielded
21 RV 23/1 12/78 Puch xxx 17″ right left shielded
23 LH 23/5 11/74 Sparta 16″ left left shielded #06008
23 LH 23/5 12/76 Sparta 16″ left left shielded #06008
23 LH 23/5 07/77 Sparta 16″ left left shielded #06008
23 LH 23/5 04/78 Sparta 16″ left left shielded #06008
21 LH 6/70 11/76 KTM xxx 17″ left left open xxx #1009-050-000
21 LH 6/61 01/77 unknown 17″ left left open
21 LH 6/61 02/71 unknown 17″ left left open
01 LV 6/63 04/77 unknown 11″ left right open with finger, 11mm hole
21 LH/RH 17/17 02/77 unknown 17″ both both
21 LH/RH 17/17 03/78 unknown 17″ both both
Plastic Drivers (made from 4/1978 on)
01 LV 28/18 11/79 unknown ??” left right open with finger, 11mm hole
16 LH 29/26 6/78 unknown 16″ left left open with finger, 11mm hole
16 LH 32/1 0 4/78 Batavus 16″ both both open #42.365 (Regency)
17 LH 29/24 4/80 unknown 17″ left left open
17 LH 31/17 4/78 unknown 17″ left left shielded
17 RV 31/5 7/78 Puch xxx 17″ right left shielded
17 RV 31/5 8/78 Puch xxx 17″ right left shielded
Veglia Speedometers
These are on Peugeot, Vespa, and some Italian mopeds.
Tomos Speedometers
Tomos Speedometers on US model mopeds 1976 to 2013
Tomos Speedometers “Family Reunion Group Photo” left to right
These Tomos speedometers all read in mph. The odometers all read in miles, except #6 which reads in kilometers.
Speedometer Cables
x Part # Price xxxx xxxx Description xx xx xxx 000 Applications
204200 $18 speedo cable VDO Puch Maxi 25.7″ Puch Maxi, Sparta, Batavus, Flandria
000000 $24 speedo cable VDO Puch 29.5″ Puch Maxi Sears FS red not silver
000000 $28 speedo cable VDO Puch 31.5″ Puch Magnum Sears FS silver
217664 $18 speedo cable VDO Tomos 30.7″=780 Tomos 04-later many others
213729 $25 speedo cable CEV Tomos 29.5″=750 Tomos 75-04 many others
000000 $20 speedo cable Huret MB/Garelli Motobecane and Garelli
000000 $24 speedo cable Veglia Peugeot Peugeot