High quality item made in Italy, this full circle crank for 125-150 cc P/PX and late model Sprint, Sprint Veloce, and Super model Vespa scooters. Full circle crankshafts increase crank case compression and low end power. The 360 degree webs generate greater stability and longer life over cut back cranks. NOTE: This crankshaft is for use on reed valve inducted engines only. To install in a rotary inducted engine, the rotary pad must be completely removed and a reed manifold installed. Please check the VIN listing to make sure that your scooter accepts this part. We recommend upgrading your crankshaft when installing performance cylinder kits.
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