Big Bore Cylinder Kit, including Camshaft and Cylinder Head, suitable for GY6 170CC scooters, ATVs, and quads, with accessories

High-concerned chemical : None Material : Metal Origin : Mainland China Diameter of the Kit(mm) : 61 Diameter of Piston Pin(mm) : 15 Diaplacement : 170CC~180CC Outer Diamter of Cylinder Skirt(mm) : 65 Middle Height of Cylinder(mm) : 69 Total Height of Cylinder(mm) : 90 Total Height of Piston(mm) : 38.5 Compression Height of Piston(mm) : 20