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Scooter GY6 150cc High Performance RM 60mm Big Bore Kit
LISTING IS FOR 1 KIT. 60mm Big Bore Kit for the GY6 150cc scooter engines 157QMJ.
For most scooters no boring out the case is required. But it is your job to ensure this. The outer diameter of the cylinder skirt is 61.94mm.
Includes Cylinder, Cast Piston, Gaskets, Rod, Clips. Brings you total CC to 163cc. Not for gokarts, dune buggies or atvs regardless if it has a gy6 engine. Including a undamaged, clean box it came in.