Single pressure spring for the clutch on 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.
Total length: 21.6 mm
Ø outer: 10.8 mm
Nostalgic product for the highest demands of the quality brand swiing®.
| Spring design | Pressure spring | 
| Manufacturer | swiing® revival parts | 
| Ø outside | 10.8 mm | 
| Total length | 21.6 mm | 
| Zündapp Belmondo | |
| Zündapp | 247 Motor | 
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