High-quality full cheek racing crankshaft with 33.5 mm short stroke for your Puch moped / moped with E50 original or ADDY 50-1 housing.
A balance factor calculated for high performance makes this forged steel crankshaft a high-end product for engines. Great importance was attached to the quality of the polished connecting rod during production and it was then fitted with bronze thrust washers.
It is possible to build a 50 cc short-stroke engine with this racing crankshaft in combination with a 43.5 Polini mm cylinder. This makes it possible to ride in the 50 cc moped cross class, for example.
Thanks to the shorter stroke, much higher engine speeds can be achieved, which offers various advantages, especially with the 1-speed automatic engine.
Details
| Manufacturer | ADDY |
| Cheek type | Full cheeks |
| Crankshaft stroke | 33.5 mm |
| Thread type | MF10x1 (fine pitch thread) |
| Material | Steel |
| Connecting rod length center-center | 90 mm |
| Total length of crankpin on clutch side | 66.6 mm |
| Total length crankpin ignition side | 73.7 mm |
| Ø crank webs | 69.9 mm |
| Ø piston pin (B) | 12 mm |
| Thread length | 14.5 mm, 10.5 mm |
| Ø Connecting rod eye | 15 mm |
| Ø Bearing seat (ignition side) | 17 mm |
| Dimension needle bearing | 12 / 15 x 14.6 (axe 12) |
| Wide crank webs | 34 mm |
| Length 1st paragraph | 9 mm |
| Length 2nd paragraph | 15.1 mm |
| Length 3rd paragraph | 25.5 mm |
| Ø 1st step (on the coupling side) | 21.9 mm |
| Ø 2nd shoulder (on the clutch side) | 17 mm |
| Ø 3rd step (on the clutch side) | 14.9 mm |
| Length of shoulder (ignition side) | 26.3 mm |
| Weight | 921 g |
| Area of application | Tuning |
| Number of gears | 1 pcs |
Suitable for the following models
| Puch | E50 |
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