S&S Cycle 320-0403 Flywheel Assembly - 4in. Stroke

Flywheel assemblies are designed for use with Timken-style sprocket shaft bearings. S&S 3-piece flywheels with integral main shafts are the strongest yet, made from 4140 steel and feature a larger 1.671in. crankpin. Fit directly in stock crankcases with no modifications. For 88in. , 95in. , and 100in. displacement in Twin Cam A and B motors with 4in. stroke. 4in. stroke flywheels can also be used in 03-06 motors when the left side main bearing is converted to a Timken-style bearing. Made in the u. s. a.