Polini Vespa PX 177cc Cylinder Kit

• Increased Performance Over Vespa PX125/150

The King of the 177cc class. POLINI sets the standards with this old school classic, the one all cast iron cylinders have to measure up to. At the plug and play level, this is a powerful cylinder, and with a 60mm long stroke crankcase, can reach 187ccm - incredible! 7 powerful transfers with a triple boost port feed the cylinder. A generous exhaust port and solid ASSO pistons create a solid support. Power plus starts in the lower ranges. No problems here with changing up gears. With a longer transmission can operate well as a touring cylinder.