POLIN CYLINDER FOR RACE

The new Polini cylinder kit made of aluminum light alloy is specific for Yamaha Aerox 50 iGET 4str. 4V euro 4.   Displacement increase to 66,29ccBore of 44mm and compression ratio of 12,4:1. The cylinder kit includes cylinder, piston, a bigger air filter sleeve to increase the air flow and an ECU with wiring and map.