S&S Cycle® – 3-Piece Flywheel Assembly

3-Piece Flywheel Assembly by S&S Cycle®. Vast improvement over stock flywheels, which shift out of true under heavy loads. Heat-treated 4140 material is 114% stronger than stock, eliminates thrust washer. Larger 1.671″ crankpin, increased cross-sectional area for increased crank-pin clamping force. No welding required. Integral mainshafts, truer flywheels and less vibration. This 4-3/8″ stroke 8-1/2″ diameter flywheel assembly replaces the original flywheels 2007-’16 HD® big twin engines, when using high performance pistons that allow the use of connecting rods with full width wristpin ends. Sprocket shaft does not have the stock style bearing race pressed on. This flywheel assembly is for crankcases with a Timken® sprocket shaft bearing. Flywheel assembly is three piece design. Pinion and sprocket shafts are forged as part of the flywheel. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials using up-to-date equipment, it ensures everlasting reliability and enduring value. This product is distinguished by total quality assurance, unsurpassed by anybody else.. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials using up-to-date equipment, it ensures everlasting reliability and enduring value. This product is distinguished by total quality assurance, unsurpassed by anybody else.

Founded in 1958, S&S Cycle® has been providing high performance motorcycle parts for Harley-Davidson® and other v-twin motorcycles for over 55 years. Starting with a simple offering of light weight pushrod kits, the S&S motorcycle performance product line has grown to include exhaust systems, camshafts, carburetors, fuel injection systems, stroker kits, big bore kits, cylinder heads, service replacement parts and complete motorcycle engines for both vintage and modern v-twins

Notes:

• Stock pistons in 2007 and later engines require rods with tapered wristpin ends
• Flywheel assemblies supplied with sprocket shaft bearing race installed are compatible with stock roller style sprocket shaft bearings
• Assemblies with no race require a Timken® sprocket shaft bearing

Specifications: