Piaggio / Peugeot Polini clutch springs

Set of 3 Spring Games

Tuned engines begin to develop their power in most cases at a very high number of revolutions, and the engine loses power at a low number of revolutions, which is often noticeable when the motorcycle starts poorly.
To bridge the number of revolutions when the engine has little power, Polini offers this replacement spring set with different strengths for standard clutches.

Colour / Hardness / RPM

Black: 20% harder 4,000rpm
Green: 35% harder 5,000rpm
Yellow: 50% harder 6,000rpm
Blue: 100% harder 7,000rpm