Torque spring MALOSSI MHR red +35% for Piaggio Bravo, Boss, Ciao, Grillo, SI

Malossi racing torque spring for Piaggio and Vespa scooters.
Replacing the spring is necessary when tuning engines. It prevents the variator from responding initially, thereby increasing engine speed; the increased power with delayed engagement improves pull-off performance.
Useful for tuned scooters or if you are experiencing problems with slipping belts.
Simply replace the original spring.