67mm Cylinder Kit Water Cooled Zongshen CG250 250cc ATV Dirt Bike TaoTao RoketaFeatures: 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 to upgrade. Kit includes cylinder, piston, rings, pin, clips & top end gasket kit (you get exactly what is pictured). Kit is for bore size 67mm, 16mm steel piston pin. Cylinder for Zongshen CG250, ZS250, 4 stroke water cooled engines. This kit is excellent as a low cost replacement for defects in