S&S Cycle 3-Piece Flywheel – 4 3/8in. Stroke 320-0352

Vast improvement over stock flywheels which shift out of true under heavy loadHeat treated 4140 material is 114% stronger than stock, eliminates thrust washerLarger 1.671in. crankpin, increased cross-sectional area for increased crank-pin clamping force.No