clutch spring set Polini sport for Yamaha T-Max 500

A set Polini clutch springs from carbonium steel for Yamaha T-Max 500 maxi-scooters. The set consists of two sets of clutch springs. The white galvanized springs are made from 1.25mm thick wire and start engagement from 3,000 RPM and fully close at 5,500 RPM. The yellow galvanized springs are made of 1.3 mm thick wire and start the engagement from 3,200RPM and fully close at 5,800RPM.