Polini 177cc Cylinder Kit P125X-PX150-Stella

Polini 63mm, 177cc kit. Fits Sprint, Super, GTR 125, TS 125, P125E, PX125E, P150X, PX150E, and COSA 125 (can also be modified to fit on some older 125 and 150's). Extra 2 stroke power, larger transfer ports, and a larger exhaust port. Includes BIG bore cylinder, high compression head, high flow piston, rings, wrist pin, pin clips, gasket set, Polini stickers, and instructions. This will bump up your old Vespa in horsepower. With a pipe and carb you can increase it much more. (This kit needs the ports chamfered, we can do this for you)