Made of high-strength forged steel and designed for stock and high-performance custom applications Special keyed 6? large diameter tapered sprocket shaft that provides more contact area for increased strength Machined with timing notches compatible with factory crank position sensor Standard S&S tapered crankpin and pinion shaft are used for ease-of-service Balanced to stock HD 80" pistons Includes flywheel, crankpin and connecting rods Made in the U.S.A.. FLYWHEEL 4.5" TAPER WG
