Columbia Commuter mopeds and their alias names had two different frames, stamped sheet metal, or mono-tube, and two different engines, Sachs 505 or Solo 255. All Columbia’s had front and rear hand brakes, with 1970’s Magura controls.
There are three Columbia cable sets:
a. Columbia sheet-metal frame, Sachs engine, Italian brakes
b. Columbia sheet-metal frame, Sachs engine, American brakes
b. Columbia mono-tube frame, Sachs engine, American brakes
c. Columbia mono-tube frame, Solo engine, American brakes
a. Columbia sheet frame with Sachs 505
short throttle cable pipe (most 1976-77)
Italian Grimeca brakes, Italian CEV headlight
Sachs engine Columbia: On Columbia with Sachs engine, the throttle cable carburetor end passes through a M6-0.75 thread adjuster on the Bing carb elbow, so the adjuster is not trapped on the cable, and is sold separately. The carb elbow, aka curved pipe, can be either short or long. So there are two different throttle cables, short or long. The difference is 1/2 inch of exposed inner wire.
746-0289 Pinch front brake cable none
42.0″ = 36 + 6 1-ended Ø1.5
746-0289r replacement black $10
746-0290 Pinch rear brake cable none
65.0″ = 59 + 6 1-ended Ø1.5
746-0290r replacement black $10
746-0291 Sachs short throttle cable none
41.3″ = 36.8 + 4.5 2-ended Ø1.2
746-0291r replacement black $20
for short cable pipe 2.0″
746-0292 Sachs choke cable none
39.0″ = 37.0 + 2.0 1-ended Ø1.2
746-0292r replacement black $12
includes pinch bolt
746-0293 Sachs start/clutch cable none
40.4″ = 34+3.1+3.3 1-ended Ø1.5 special
746-0293r replacement black $34
b. Columbia sheet frame with Sachs 505
b. and mono-tube frame with Sachs 505
long throttle cable pipe (most 1978-80)
American brakes, American headlight
Sachs engine Columbia: On Columbia with Sachs engine, the throttle cable carburetor end passes through a M6-0.75 thread adjuster on the Bing carb elbow, so the adjuster is not trapped on the cable, and is sold separately. The carb elbow, aka curved pipe, can be either short or long. So there are two different throttle cables, short or long. The difference is 1/2 inch of exposed inner wire.
746-L291 Sachs long throttle cable none
41.8″ = 36.8 + 5.0 2-ended Ø1.2
746-L291r replacement black $20
for long cable pipe 2.5″
746-0292 Sachs choke cable none
39.0″ = 37.0 + 2.0 1-ended Ø1.2
746-0292r replacement black $12
includes pinch bolt
746-0293 Sachs start/clutch cable none
40.4″ = 34+3.1+3.3 1-ended Ø1.5 special
746-0293r replacement black $34
746-0344 S-hook front brake cable none
38.1″ = 33.7 + 4.4 2-ended Ø1.7 S-hook
746-0344s front brk cable substitute $15
39.0″ = 33.7 + 5.3 1-ended ∅1.5 pinch bolt
includes pinch bolt, adjuster $3 extra
746-0345 S-hook rear brake cable none
63.9″ = 59.1 + 4.8 2-ended Ø1.7 S-hook
746-0345s rear brake cable substitute $15
65.0″ = 59.1 + 5.9 1-ended ∅1.5 pinch bolt
includes pinch bolt, adjuster $3 extra
c. Columbia mono-tube frame with Solo 255
no cable pipe, Bing carb on bottom
American brakes, American headlight
Solo engine Columbia: On Colombia with Solo engine, the throttle cable carburetor end passes through the a M6-0.75 thread adjuster on the top of the carburetor. So the adjuster is not part of the cable, unlike Puch, and like on the Colombia with Sachs engine.
746-0344 S-hook front brake cable none
38.1″ = 33.7 + 4.4 2-ended Ø1.7 S-hook
746-0344s front brk cable substitute $15
39.0″ = 33.7 + 5.3 1-ended ∅1.5 pinch bolt
includes pinch bolt, adjuster $3 extra
746-0345 S-hook rear brake cable none
63.9″ = 59.1 + 4.8 2-ended Ø1.7 S-hook
746-0345s rear brake cable substitute $15
65.0″ = 59.1 + 5.9 1-ended ∅1.5 pinch bolt
includes pinch bolt, adjuster $3 extra
746-0346 Solo start/clutch cable none
50.0″ = 42.0 + 8.0 1-ended Ø1.5
746-0346r replacement black $12
746-0347 Solo throttle cable $23
45.2″ = 42.0 + 3.2 2-ended Ø1.2
746-0348r replacement black $20
746-0348 Solo choke cable none
44.0″ = 42.0 + 2.0 2-ended Ø1.2
746-0348r replacement black $20
Left, American brake, original wire has an “S-end”
Right, Italian brake, wire has no end, held by pinch bolt
Columbia S-end brake with substitute cable