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 mm Polini cylinder. This makes it possible to ride in the 50 cc Mofacross 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.
| Manufacturer | ADDY |
| Material | Steel |
| Cheek type | Full cheeks |
| Crankshaft stroke | 33.5 mm |
| 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 Connecting rod eye | 15 mm |
| Ø piston pin (B) | 12 mm |
| Ø Bearing seat (ignition side) | 17 mm |
| Thread type | MF10x1 (fine pitch thread) |
| Thread length | 14.5 mm, 10.5 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 |
| Area of application | Tuning |
| 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 |
| Number of gears | 1 pcs |
| Puch | E50 |
Ratings
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