This 63.5mm standard bore cylinder piston rings gasket kit is compatible with the Crossmax 200 motorcycle.Constructed from steel, the cylinder and piston provide and resistance to wear.The bore diameter is 63.5mm, matching standard specifications for proper fitment.The piston diameter is 63.5mm and the wrist pin diameter is 15mm, correct installation and function.With a 200cc displacement, this kit supports consistent engine performance.The kit includes the cylinder, piston, piston rings, and gasket—providing essential components for replacement or rebuild.Designed for straightforward installation, it is suitable for both experienced mechanics and DIY users seeking to restore engine functionality.