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…
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 $40 2 00002 60 dk blue/wht 40mph 10.0 -13.8 works: now 00003 reads very low $40 3 00001 60 dk blue/wht 40mph 22.5 -1.3 works: now 00002 new, perfect glass $100 4 00009 60 dk blue/wht 40mph 21.0 -2.8 frozen only speedo works $40 5 01062 60 dk blue/wht 40mph 25.0 +1.2 works: now 01063 used, good “glass” $100 6 00001 60 dk blue/wht 40mph 25.0 +1.2 works: now 00002 new, tiny scratches $90 7 00847 60 dk blue/wht 40mph 24.0 -0.8 works: now 00848 used, scratched bad $50 8 00001 60 dk blue/wht 40mph 23.0 -1.8 works: now 00002 new, tiny scratches $80 9 03751 60 dk blue/wht 60mph 25.0 +1.2 works: now 03752 used, good glass $130 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 $100 12 00001 60 dk blue/wht 40mph 23.5 -0.3 works: now 00002 new in original box $100 13 00001 60 dk blue/wht 40mph 24.0 +0.2 works: now 00002 new in original box $100 14 00000 60 dk blue/wht 40mph 20.5 -3.3 works: now 00001 new in original box $80 15 05182 60 black/white 40mph 25.0 +1.2 works: now 05183 has a small smudge $90 16 00995 60 black/white 40mph 25.0 +1.2 works: now 00996 slightly cloudy $90 17 00084 60 black/white 40mph 27.0 +3.2 works: now 00085 very good “glass” $110 xx 00367 60 dk blue/wht 40mph froze —- unknown for parts only $20 xx 00000 60 dk blue/wht 40mph froze —- unknown for parts only $20
These 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.
These are on Garelli, Motobecane and others. They all freeze up solid from the grease inside turning into sticky tar.
These are on Puch and many others.
These are on Peugeot, Vespa, and some Italian mopeds.
Tomos Speedometers “Family Reunion Group Photo” left to right
This is all so far. More material will be added later…
|S P E E D O C A B L E S|
|204200||speedo cable VDO Puch Maxi 25.7″||$18||Puch Maxi, Sparta, Batavus, Flandria|
|oldver||speedo cable VDO Puch 29.5″||$20||Puch Maxi Sears FS red not silver|
|speedo cable VDO Puch 31.5″||$30||Puch Magnum Sears FS silver|
|217664||speedo cable VDO Tomos 30.7″=780mm||$18||Tomos 04-later many others|
|213729||speedo cable CEV Tomos 29.5=750mm||$18||Tomos 75-04 many others|
|speedo cable Huret Motobecane/Garelli||N/A||Motobecane and Garelli|
|speedo cable Veglia Peugeot||N/A||Peugeot|