Cylinder Barrel Piston Gaskets Top End Kit For Honda CN 250 Helix Spazio 86-07Cylinder Piston Gasket Top End Rebuild Kit 72mm For Honda Helix CN250 CH250 1986 2007 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). The cylinder is made of aluminum for good cooling with an internal cast iron jacket (unlike which has a