Semipulley of variator Kymco scooter 300cc Ventilvar 2000 Malossi

This is the fixed half-pulley that goes on the end of the crankshaft. Its larger blades significantly improve cooling inside the crankcase. The pulley’s inclination has been specially designed to optimise the performance of Polini and Malossi variators, although it can also be installed together with the original variator.