Torque spring Malossi MHR Racing Red for Piaggio Bravo, Boss, Ciao, Grillo, SI

Description

If the engine performance is increased through tuning measures, more pressure must be exerted on the V-belt with the help of a stronger counter-pressure spring so that it does not slip.
The counter-pressure spring applies the contact pressure to the V-belt and the traction on the belt is increased.
Useful for tuned vehicles and problems with slipping belts.
Simply exchange for the original.