Everything you need to increase the displacement and performance on your Vespa, Piaggio or Aprilia 50cc 2 Valve engine. We have put together the best components for an affordable and entertaining big bore upgrade. This kit includes a big bore cylinder kit, gaskets, performance cam, racing air filter, and the correct jet for the stock carburetor. Bolt it on and have some fun. 

Does not fit Two Stroke engines, does not fit four stroke four valve engines. It is your responsibility to figure out if this is correct for your scooter.