250cc Cylinder Kit For Vento Tornado 250 Rocketman 250 - 65.5mm Piston pin 13mm Fedex Express? 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, 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 performance materials to increase durability and provide greater reliability. Includes all gaskets