344CC Bore Up Kit Cylinder For Yamaha CZD 300 A X-Max MWD 300 Tricity 2017-202476mm Cylinder Piston Gasket Top End Rebuild Kit 344cc For Yamaha XMAX 300 XMAX 300 2017 2024 Features: If your cylinder blows through, the compression is too low, or even a piston seizure has occurred, then this kit is exactly the right thing for you. Kit includes cylinder, forged piston, rings, pin, clips & top end gasket kit (you get exactly what is pictured). Piston is anodized for superior heat resistance and longer lifespan. The gaskets use