ONLY FITS Four Stroke, 2 Valve Engines. Does not fit four valve engines. Does not fit two stroke engines. 

Finally an 80cc Big Bore Kit for the Vespa LX 50 and S 50 4 Stroke Models  that does not break the bank. This kit is for all Vespa LX 50 and S 50 with 2 Valve Models. Includes the Cylinder, Piston, Rings, Gaskets, Wrist Pin and Circlips. 

We put one in a bike at the shop and immediately noticed about 8 mph and a much better pull from a stop and in and out of traffic. This is what you need to make your LX 50 fun to ride. Works very well with Malossi Variator 5111597.

for Vespa LX 50 2 Valve 50cc, Piaggio Fly 2 Valve 50cc and Aprilia Scarabeo 50cc 4 Stroke 2 Valve Engines.

49mm diameter piston.

Get that extra boost you need around town or going up hills on your LX 50 4 Stroke.

Add the Naraku cam for even more fun!!!!

Fits the following models

Vespa LX 50 2006-2010 2 Valve

Aprilia Scarabeo 50 2 Valve 

Piaggio Fly 50 4T 2V