Compatible Models: Driven pulley is fits for most Chinese GY6 250cc go karts & scooters 16T spline. Please make sure this item suits for your car before placing order. Premium quality Material: Rear driven pulley assembly is made of high grade steel alloy material, high temperature and corrosion resistance for long time use. Note: Rear Driven Pully Assembly must be torqued to vehicle correctly to prevent failure. Perfect Replacement: Exquisite workmanship, stable performance and high reliability. Based on the original factory specifications, a direct replacement for the old or broken one. Pretest: Factory has undergone high pressure water immersion test and 12 hour power on aging test, and multi layer waterproof design, which truly achieves high pressure washing and immersion waterproofing. Product Description Fitment: Fit for LINHAI GY6 260cc 250 300cc Scooter Go Kart ATV Specification: Condition: 100% Brand New Item Type: Rear Driven Pulley Assembly Material: Steel Alloy Color