S&S, M8 4-1/2" stroke flywheel assembly

With installed balancer gear. With full wristpin width connecting rods for use with S&S pistons. Comes fully assembled with flywheels; connecting rods; connecting rod bearings; pinion and sprocket shaft. - 4-1/2" Stroke (114ci) - Balance Gear installed - Heat Treated 4140 Material is harder & more than twice as strong as stock - Stronger assembly eliminates need to weld crankpin - S&S High Strength Connecting Rods are designed with Finite Element Analysis to eliminate weak spots - Full width wristpin connecting rods (requires S&S Performance Pistons) - Balanced for S&S Performance piston weight (1213g) - Perfect for Gear Drive Cams - Consistent balance & precision machining - Capable of higher RPM for more available power! // Fitment: 18-26 Softail; 17-26 Touring (excl. 23-26 121" Touring). Requiring 4-1/2" flywheels.