49mm Motorcycle Front Air Cylinder Block and Piston Kit with Gasket Set for XV250 XV 250 This kit includes a cylinder block, piston, and gaskets designed to fit 49mm front air applications on XV250 XV 250 models.The components are engineered for direct replacement and compatibility with standard engine configurations.The set provides all necessary parts for cylinder and piston assembly, proper function and compression.Designed for straightforward installation, the kit supports engine performance and under normal operating conditions.