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Scooter GY6 150cc High Performance RM 63mm Big Bore Kit with FORGED piston
63mm Big Bore Kit with FORGED Piston for the GY6 150cc scooter engines 157QMJ. REQUIRES BORING OUT YOUR CASE. Includes Cylinder, FORGED Piston, Gaskets, Rod, Clips. Brings you total CC to 180cc.
Including a undamaged, clean box it came in.