Minarelli horizontal clutch springs d=107mm Polini

Set of 3 Spring Games

Tuned engines usually start to develop their power at a very high number of revolutions, and the engine loses power at a low number of revolutions. This is often noticeable when the bike starts poorly.
To bridge the number of revolutions when the engine has little power, Polini offers this set of replacement springs with different strengths for standard clutches.

Kit for models after 1998---!
Standard clutch d.107mm / 3 shoes!

Colour / Hardness / RPM

Black: 20% harder 5,500rpm
Green: 35% harder 6,000rpm
Yellow: 50% harder 6,500rpm