CRANKSHAFT 50CC GEARED MOTORCYCLE POLINI FOR RACE FOR MINARELLI 50 AM6/BETA 50 RR/RIEJU 50 MRT/SHERCO 50 SM-R, SE-R (BEARINGS TPI INCLUDED) (210.0081)

Polini Motori presents the new For Race crankshaft, designed to bring the performance of Minarelli AM6 engines mounted on 50cc Enduro and Motard motorcycles to their maximum.
Designed for the most advanced preparations, the Polini For Race crankshaft with a stroke of 39mm is made with solid masses to improve the efficiency of carburetion and optimize the inertia of the engine. The forged connecting rod guarantees maximum resistance to mechanical stress at high revs, while the specially designed balancing ensures reduced vibrations and smooth, consistent power delivery.
For superior reliability, the kit includes two high-speed C4 bearings. In particular, the bearing on the flywheel side has been reinforced with an internal diameter increased to 20mm, a technical solution which considerably improves resistance and lifespan in the most extreme conditions.
The new Polini For Race crankshaft is the ideal choice for those looking for maximum performance and reliability.