Features: 1.Applicable Model: Piston rings gasket set is suitable for all major Chinese 110cc and 125cc engine ATV, Dirt Bike, Pit Bike, Go Kart, Pocket Bike. 2.Applicable : Replacement for Kazuma, replacement for Taotao, replacement for Sunl, replacement for Coolster, replacement for Roketa, replacement for BMS, replacement for SSR. 3.Dimensions: Piston bore size is 52.4mm/2.1in, wrist pin diameter is 13mm/0.5in, piston pin diameter is 13mm/0.5in, pin length is 41mm/1.6in. 4.Package Including: This set contains 110cc 4 stroke piston, piston ring, piston pin, G ring, piston rings gasket, and magnet O ring. 5.Long Service Life: Engine piston pin rings kit is made of superior metal material, with stable characteristics and high reliability. Specification: Item Type: Piston Rings Gasket Set Material: Metal Piston Bore Size: Approx. 52.4mm/2.1in Wrist Pin Diameter: Approx. 13mm/0.5in Piston Pin Diameter: Approx. 13mm/0.5in Pin Length: Approx. 41mm/1.6in Used to replace old piston sets Application: For all major Chinese 110cc and 125cc engine ATV, Dirt Bike, Pit Bike, Go Kart, Pocket Bike, replacement for Kazuma, replacement for Taotao, replacement for Sunl, replacement for Coolster, replacement for Roketa, replacement for BMS, replacement for SSR