Ensures smooth CVT operation Ultralight balanced components Oversized wear pads State of the art PTFE coatings If you have a Buddy or RoughHouse, this Super Transmission Kit for 50cc GY6 QMB139 Engines from NCY is a superb assortment of top-quality scooter add-ons that will help you achieve quicker acceleration and higher top speeds In addition to the Buddy 50 and RoughHouse, this transmission kit will work for a wide variety of GY50/QMB139 Chinese scooters with 50cc engines This Super Transmission Kit includes: Aluminum drive face assembly Pressure plate with slider bushings Coated Golden pulley Racing clutch Secondary slider Clutch bell 16 x 13mm 9G Roller Weights 1000 RPM compression spring Note: If you are going to use this on a Buddy 50 or RoughHouse, you must reuse your original factory drive face. Description If you have a Buddy or RoughHouse, this Super Transmission Kit for 50cc GY6 QMB139 Engines from NCY is a superb assortment of top-quality scooter add-ons that will help you achieve quicker acceleration and higher top speeds. In addition to the Buddy 50 and RoughHouse, this transmission kit will work for a wide variety of GY50/QMB139 Chinese scooters with 50cc engines This Super Transmission Kit includes: Aluminum drive face assembly Pressure plate with slider bushings Coated Golden pulley Racing clutch Secondary slider Clutch bell 16 x 13mm 9G Roller Weights 1000 RPM compression spring Note: If you are going to use this on a Buddy 50 or RoughHouse, you must reuse your original factory drive face. WARNING California Residents : Proposition 65 Warning