Drive pinion with 12 teeth for mopeds, mopeds and small motorcycles with Sachs 502/1 A, 502/1 B, 502/1 AX, 502/1 AX, 502/1 A CH, 502/1 A DK, 502/1 A NL, 502/1 A S and 502/1 A SF engine (colloquially often called torpedo or rocket engine).
The drive gear fits the following models, among others:
- Hercules CB1 City Bike, L50, MF1, MF2, MP1
- Rex Miniped, Miniped MK2
- Sparta Happy
- Motograziella
- Pony City
- KTM Hobby 1968 - 1972
On Swiss, German, Danish, Swedish, Dutch and Finnish models, a sprocket with 11 teeth was fitted ex works. It can therefore be regarded as a tuning sprocket in these versions. In Portugal, France and Italy, an engine sprocket with 12 or 13 teeth was fitted as standard.
| Manufacturer | ESJOT |
| Material | Steel |
| Chain type | 415H |
| Number of teeth | 12 pcs |
| Recording type | 2-edge |
| Chain pitch | 1/2" x 3/16" |
| Thickness | 4.3 mm |
| Total thickness | 6 mm |
| Sachs | 502 1A / 1B (torpedo) |
| Hercules | |
| Motograziella |
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