S&S<sup>®</sup> 4-1/8" Stroke Flywheel Assembly W/O Sprocket Shaft Bearing Race For 2007-'16 Non-Balanced HD<sup>®</sup> Big Twins
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S&S® 4-1/8" Stroke Flywheel Assembly W/O Sprocket Shaft Bearing Race For 2007-'16 Non-Balanced HD® Big Twins

Item #: 320-0407
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$1,444.95

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This 4-1/8" stroke 8-1/2" diameter flywheel assembly is a replacement for the flywheels in S&S T111 engines for 2007-'16 big twin models. It also fits 2007-'16 HD® big twin engines, when not using stock pistons, and S&S® T111 engines. Wrist pin ends of connecting rods are full width. Sprocket shaft does not have a stock style bearing race pressed on. This flywheel assembly is for crankcases with Timken® sprocket shaft bearing. Flywheel assembly is three piece design. Pinion and sprocket shafts are forged as part of the flywheel. The only joints in the assembly are where the 1.671" diameter connecting rod crankpin is pressed into the flywheels. Flywheels are CNC machined from heat-treated, closed die, steel forgings, which are 114% stronger than late style stock steel flywheels. Fully assembled with premium quaility S&S® heavy duty 7.659" connecting rods, with tapered wrist pin ends, and dynamically balanced. Assembly is trued to less than .0005" runout on pinion and sprocket shaft bearing surfaces, making them capable of higher rpm and fully compatible with gear drive cams.

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Stock pistons in 2007 and later engines require rods with tapered wristpin ends. All S&S® Flywheels for 2007 and later engines have 7.659” length connecting rods. Flywheel assemblies supplied with sprocket shaft bearing race installed are compatible with stock roller style sprocket shaft bearings.