Crankshaft Polini Big Evolution 85mm / 12mm for Minarelli horizontal LC

Description

Polini Racing crankshaft for the 70 and 84ccm Big Evolution Cylinder with 12mm piston pin for scooter Minarelli horizontal LC engine. The crankshaft has a 16mm thick tail shaft, so that a larger Vario sleeve must be used, or rather a corresponding Racing variator should be installed the same. Those who want to use the crankshaft for a sports or racing cylinder, absolutely necessary to the optional adapter (170.1001), so that the piston does not strike the head. Features:

Rods: 85mm
Stroke: 39,2mm
tail shaft: 16mm
Gudgeon pin: 12mm