rulli Polini Massa centrifuga per Ref : POL00018A / 1011825

The three weights, made from steel alloy and aluminium, have a weight of 15 gr, 6,5 gr. at least compared to the original fit weights. They are interchangeable and can have 2 functions: 1. The 3 weights coupled to the Polini clutch torque springs and added to the 12 original ones means a shorter clutch slippage time and, at the same time, an increase in clutch speed from 5000 to 6000 rotations depending on the hardness of the 2 springs used. The 3 weights replacing the original ones increase the slip time of the original clutch