Polini 130cc kit

Polini 57mm, 130cc kit, fits 1970's and newer. (Vespa 90, 90 SuperSprint, 100 Sport, Primavera, ET3 and ETS) Can also be modified to fit on the Vespa 50 with new crank shaft and longer studs. Extra 2 stroke power, plus larger transfer ports and larger exhaust port. Includes BIG bore cylinder, high compression head, 3 transfer port piston, rings, wrist pin, pin clips, gasket set, exhaust studs, Polini stickers, and instructions. This will bump up your old Small frame in horsepower, and with a pipe and carb you can increase it much more. (This kit needs the ports chamfered, we can do this for a $35 fee)