Crankshaft (Full Circle); Vespa P/PX GT Thread Size (spline side): M12x1

Thread Size (spline side): M12x1

Tapered universal design fits most 50cc–300cc scooter under-seat compartments

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JJ157QMJ 125cc 152QMI

Crankshaft (Full Circle); Vespa P/PX GT Thread Size (spline side): M12x1High 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