JRL 47mm Cylinder Head Set Fits 80cc Gas Motorized Bicycle Bike Engine 47mm Cylinder Head Set Fits 80cc Gas Motorized Bicycle Bike Engine Package Include:1*Cylinder 1*Piston 2*Piston ring 1*Piston pin 1*Cylinder head 2*Gasket Please check for the details and make sure this is the right one you need. Match original equipment exactly for a perfect fit, easy to install.