Universal Parts 57.4mm Stock Cylinder Kit for 150cc GY6 4-stroke engines. Includes cylinder, piston, pin, circlips, rings, head gasket, base gasket and chain tensioner gasket.

• Bore: 57.4mm
• Overall Height: 90mm
• Cylinder Sleeve Outer Diameter: 60.7mm
• Piston Pin Diameter: 15mm
• Piston Pin Length: 42mm

GY6 QMI/QMJ 152/157, Various unlisted makes/models