Reinforced drive shaft / main shaft suitable for Zündapp Belmondo mopeds, Zündapp Bergsteiger M25/M50 mopeds, as well as Alpa Spezial 3000 and Alpa Black River small motorcycles which have a Zündapp type 247 engine installed.
The key width and the depth of the pinion mount have been extended.
The well-known weak point of the leaking pinion mounts has thus been eliminated with this modified pinion shaft.
| Manufacturer | swiing® ingenious parts |
| Material | Steel, Copper |
| Surface | blank, coated |
| Ø outside | 23.8 mm, 22 mm |
| Recording type | Ø15 x SW12 |
| Ø inside | 12 mm |
| Total length | 82.6 mm |
| Thread type | MF12x1 (fine pitch thread) |
| Zündapp Belmondo | |
| Zündapp | 247 Motor |
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