Description
The S&S Cycle 4" Stroke Flywheel Assembly is engineered for 2000-2006 Harley-Davidson® Big Twin "B" motors (except 2006 Dyna models). Featuring durable 3-piece flywheels with integral main shafts, these assemblies are among the strongest available. Constructed from heat-treated 4140 steel and utilizing an oversized 1.671" crankpin, this setup provides superior strength and reliability. Designed for use with Timken bearing conversions, it fits directly in stock crankcases with no modifications required. Includes sprocket shaft bearing race and delivers exceptional balance and durability for high-performance Harley engines. Made in the U.S.A.
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