The Polini 107mm Speed Clutch is a high-performance replacement clutch for 2-stroke and 4-stroke 50cc scooter engines. Lightweight reinforced clutch blocks and fiber-reinforced shoes deliver superior heat resistance, strong grip, and long service life on both stock and modified engines. Includes one extra set of springs for tuning engagement RPM. Made in Italy. Key Features 107mm outer diameter — direct replacement for OEM clutch bell Lightweight reinforced clutch blocks for faster engagement response Fiber-reinforced shoes for superior heat resistance and grip Includes 1 extra set of clutch springs for engagement tuning Compatible with 2-stroke and 4-stroke 50cc engines Made in Italy by Polini Specifications Outer Diameter: 107mm Engine Compatibility: 2-stroke and 4-stroke 50cc Includes: Clutch assembly + 1 extra set of springs Origin: Made in Italy Compatibility Make Models Aprilia SR50, Scarabeo 50, Sport City 50, Mojito 50 Derbi Atlantis 50, GP1 50 Genuine Buddy 50, Roughhouse 50 Honda Elite SA/SR50 Kymco Agility 50, People 50, Like 50, Super 8 50, Super 9 50, ZX50, Vitality 50 Malaguti F12 Phantom, F15 Firefox Peugeot Speedfight (all) Piaggio Fly 50, Zip, Zip 2, Typhoon 50 SYM DD50, Fiddle 1 & 2, Jet 50 Vespa ET2, ET4, LX 50, Primavera 50, S 50 Yamaha Jog, Zuma 50, C3 Visit our Shop by Diagrams page to confirm fitment for your specific model year. This product is intended for off-road use only. Not legal for use in California on pollution-controlled vehicles. Check local laws before installing. Performance upgrades are considered racing parts and are not covered by warranty. California Prop 65 Warning: www.p65warnings.ca.gov