Replacement spring set for the Jammer tuning clutch on your Puch with ZA50 engine, Tomos A35, A55 and mopeds / mopeds with Minarelli V1 engine.
The blue clutch springs with their wire diameter of 1.3 mm are the second heaviest of the available springs and are designated as stage 2.
The springs supplied with the jammer clutch are relatively hard, requiring a high engagement speed; this variant lowers the speed accordingly.
| Spring design | Tension spring |
| Length spring hook | 8 mm, 14 mm |
| Manufacturer | GPO |
| Material | Spring steel |
| Surface | varnished |
| Color | blue |
| Ø wire | 1.3 mm |
| Total length | 34 mm |
| Ø inside | 7.3 mm |
| Ø outside | 9.9 mm |
| Puch | E50 ZA50 (air-cooled) ZA50 (fan-cooled) |
| Tomos | |
| Fantic |
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