Item Type: Cylinder Piston Set Material: Steel Alloy Diameter: Approx. 39mm/1.5in End Height: Approx. 53mm/2.1in Total Height: Approx. 70mm/2.8in Fitment: Replacement for GY6-50/60CC Engine go karts, scooters, ATV, UTV, motorcycles. 1Wide Application: The heavy duty cylinder piston set is a wonderful replacement for GY6?50/60CC Engine go karts, scooters, ATV, UTV, motorcycles and so on. 2High Quality Materials: The cylinder piston kit is exquisitely crafted from premium steel alloy with excellent resistance to high temperature and rust. 3Easy to Install: Specially designed on the case of the original specification for perfect fitness, you can directly replace the original one to save your time. 4Professional Production: The motorcycle cylinder set has undergone extensive quality and safety testing to ensure high efficiency and strong durability. 5Excellent Characteristics: The cylinder piston gasket kit makes use of advanced materials for longer and reliable service life as well as stable performance. 1 x Cylinder Block 1 x Cylinder Head 2 x Gasket 7 x Washer 1 x Sleeve 2 x Rubber Gasket