GY6 61mm Cylinder Kit

Big Bore 61mm cylinder kit for a 125 and 150cc equipped Chinese scooters. You will need to modify the engine block to accept the sleeve on this cylinder. Achieve maximum performance by adding the 61mm performance head and/or a performance exhaust for maximum air flow.

For those customers who want an all out package using the 61mm setup, see our 61mm Big Bore Kit, which comes complete with all of the upgrades you will need to maximize performance on your 150cc scooter.

Included with Kit

• Cylinder
• Piston
• Rings
• Piston Pin
• Gaskets