S&S Cycle Flywheel Assembly - 4-5/8" - 124" Big Twin '84-'99947629084 Product Description Replaces the original flywheels in S&S 124" V124 engine for '84 '99 Big Twin Pinion and sprocket shafts are forged as part of the flywheel The only joints in the assembly are where the 1. 671" diameter connecting rod crankpin is pressed into the flywheels CNC machined from heat treated, closed die, steel forgings, which are 114% stronger than late style stock steel flywheels Fully assembled with premium quaility S&S heavy
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