This 4-3/8" stroke 8-1/2" diameter flywheel assembly replaces the original flywheels 2007-'16 HD® big twin engines, when using stock pistons. Wrist pin end of connecting rods is tapered like stock rods. Sprocket shaft has the bearing race pressed on and is compatible with stock roller sprocket shaft bearing. Flywheel assembly is three piece design. 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.
Key Features
Brand Manufactured by S&S Cycle
Category Drivetrain
Type Flywheels
Specifications
Length 14.2 in
Width 12.2 in
Height 11 in
Weight 39.1 lbs
Rider Benefits
This 4-3/8" stroke 8-1/2" diameter flywheel assembly replaces the original flywheels 2007-'16 HD® big twin engines, when using stock pistons. Wrist pin end of connecting rods is tapered like stock rods. Sprocket shaft has the bearing race pressed on and is compatible with stock roller sprocket shaft bearing. Flywheel assembly is three piece design. 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.
Flywheels are CNC machined from heat-treated, closed die, steel forgings, which are 114 percent stronger than late style stock steel flywheels
Fully assembled with premium quaility S&S® heavy duty 7.667" connecting rods, with full width wrist pin ends, and dynamically balanced
The only joints in the assembly are where the 1.671" diameter connecting rod crankpin is pressed into the flywheels.
Please review manufacturer details to ensure proper fitment before ordering.