crankshaft Polini for Piaggio / Derbi engine D50B0

High quality Polini crankshaft for gear shift moped with 50cc Derbi D50B0 engine. The thrust washers and the lubrication hole on the upper connecting rod eye increase the longevity / mileage of the shaft.
The connecting rod length corresponds to that of the original crankshaft. This makes the Polini crankshaft suitable for 50cc / 70cc sport / racing cylinder kits. The delivery includes Polini piston pin / small end bearings.

We recommend that you always replace the crankshaft bearings when replacing the crankshaft.