DescriptionCrankshaftPolini Racing(rotary valve) 60mm stroke,105mm conrod-Vespa PX125, PX150 DescriptionThe Polini crankshafts are very cleanly finished and convince with their well thought-out details:flow-optimized control cheekwell balancedstable connecting rodextended inlet control angleavailable with 57mm (std) and 60mm stroketrunnion: 20mm (except PX200, 57mm stroke: 22mm)The width of the sealing surface on the rotary valve cheek is 15.8mm wide as on the original PX125/150 shaft.The PX200 version has here 16,8mmThe extended inlet control angle results in a larger time cross section and allows a significant increase in power over the whole speed band. Very nice stable shaft which provides more bandwidth in every engine.Fits the following vehiclesVespa (Motovespa) Vespa 125 CL (engine 9CL)Vespa (Motovespa) Vespa 150 CL (engine 9NC)Vespa (Motovespa) PX 125 Iris (engine 99M)Vespa (Motovespa) PX 150 Iris (engine 75M)Vespa (Piaggio) 125 PX E FL (2017-, ZAPM74100)Vespa (Piaggio) 150 PX E FL (2017-, ZAPM74200)Vespa (Piaggio) 125 PX E FL (2016-, ZAPM74100) special edition "70 years"Vespa (Piaggio) 150 PX E FL (2016-, ZAPM74200) special edition "70 years"Vespa (Piaggio) Cosa 150 CL (VLR1T)Vespa (Piaggio) Cosa 150 CLX (VLR1T300)Vespa (Piaggio) Cosa 150 FL (VLR2T)Vespa (Piaggio) P 150 X (VLX1T, -1980)Vespa (Piaggio) PX 150 E FL (VLX1T, 1984-1997)Vespa (Piaggio) PX 150 E (VLX1T, 1981-1983)Vespa (Piaggio) Cosa 125 CL (VNR1T)Vespa (Piaggio) Cosa 125 CLX (VNR1T300)Vespa (Piaggio) Cosa 125 CLX (VNR1T301)Vespa (Piaggio) P 125 X (VNX1T, -1983)Vespa (Piaggio) PX 125 E FL (VNX2T, 1984-1997)Vespa (Piaggio) PX 125 E FL (ZAPM09300, 1998-2000)Vespa (Piaggio) PX 125 E FL (ZAPM09302, 2001-)Vespa (Piaggio) PX 150 E FL (ZAPM09400, 1998-2000)Vespa (Piaggio) PX 150 E FL (ZAPM09401, 2001-)
