Universal Parts GY6 61mm Big Bore Cylinder Kit

Universal Parts 61mm Big Bore Cylinder Kit for 150cc GY6 4-stroke engines. Upgrades to 169cc based on a stock stroke of 57.8mm! Includes cylinder, piston, pin, circlips, rings, head gasket, base gasket and chain tensioner gasket. Please Note: All Sales On Clearance items Final*You may need to modify your engine case to accommodate the larger cylinder. Please Note: Does NOT fit 161QMK “200cc” engines! Upgrades to 168.9cc! Bore: 61mm Overall Height: 90mm  Cylinder Sleeve Outer Diameter: 63.7mm All Sales On Clearance items Final