S&S® 4-3/8" Stroke Flywheel Assembly W/Sprocket Shaft For 2003-'06 Internally Balanced HD® Big Twins - Performance PistonsThis 4 3 8" stroke 8 1 2" diameter flywheel assembly replaces the original flywheels 2007 '16 HD big twin engines, when using performance or big bore pistons. Wrist pin ends of connecting rods are full width (not tapered). Sprocket shaft has a stock style bearing race pressed on. This flywheel assembly is for crankcases with stock roller style sprocket shaft bearing. Pinion shaft has sprocket to drive balancer chain. Flywheel assembly is three piece
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S&S® 4-3/8" Stroke Flywheel Assembly W/Sprocket Shaft For 2003-'06 Internally Balanced HD® Big Twins - Performance Pistons