Polini Maxi Speed clutch for GY6, Kymco and Honda 4-stroke maxi scooters. This clutch features great design together with lightweight clutch blocks and reinforced friction plates. Altering the speed at which the clutch engages means the engine can be made to rev higher before the power comes in. This means greater drive, better performance on hills, everyday use and traffic light getaways. The clutch cannot be additionally adjusted, you can achieve this variation in engagement speed with different clutch springs