"PM TUNING HIGH PERFORMANCE COMPETITION RACE CRANKSHAFT FOR PIAGGIO AND GILERA 50cc

"This race crankshaft features superior strength over the stock item material used is better quality and heat treated throughout rather than just the bore holes for the crank pin. Full circle flywheel improves primary compression for greater transfer pressures and reduced turbulence. Dynamically balanced for reduced vibration, mechanical losses yielding better power. It can be for use on stock or modified machines as an improvement overall. INA silver cage big end bearing offers an improvement on engines longevity reliability especially when operated at higher revs. Complete with high performance small end bearing and oval cross section to con rod for reduced crankcase turbulence. "