Polini 249.053 - P249053 - Polini 107 mm EVO 3 Clutch for the 2 stoke Yamaha Zuma Scooter and All Minarelli Scooter Engines Springs no longer break due to being pressure activated rather than pull The 2G 107mm Evo 3 clutch from Polini comes with a reinforced base plate and low-slip clutch pads Highest levels of finishes and extreme close tolerances maintained Last longer and hits harder than the stock clutch Fully adjustable without having to change springs