POLINI Speed Drive Evolution 3 Poelie - Yamaha/Minarelli

100% made in Italy the new Polini Evolution 3 “Speed drive” for 50cc scooters equipped with Minarelli-Yamaha engines.

Made of aluminum light alloy it is machined direct from the block and weighs only 500 gr. lighter than the steel pulleys. This is an innovative and exclusive feature that brings great advantages: besides more power transmission, the working temperatures decrease and consequently the belt grip is better. The performance is really high and due to the stability of its efficiency this helps to avoid any loss of power during the race. During the race testing the speed increase is immediately noticeable thanks to the grip improvement with faster acceleration when exiting corners.