Description The Polini crankshafts are very cleanly finished with attention to detail: well balanced stable connecting rod extended inlet control angle available with 57mm (std) and 60mm stroke trunnion: 20mm The width of the sealing surface on the rotary vane cheek is 15.8mm wide as on the original PX125/150 shaft. The extended inlet control angle results in a larger time cross section and allows a significant increase in power over the whole bandwidth in every engine *Non-Stock Item* Please allow 2-3 weeks for delivery
