4-3/8in. Stroke Flywheel Assembly. Fits 107ci Milwaukee-Eight 2017up. - S&S

The Crankshaft is the heart of any performance engine and S&S Cycle has been perfecting the art for over six decades. Stronger, more durable, and trued to a spec others can only dream of, our new crankshaft assemblies for the Milwaukee-Eight platform are the best of the best to build your high performance engine around.

4-3/8″ Stroke (Stock in 107ci engines)

Tapered Wristpin for OEM style pistons

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 and handle more power!

Perfect for Gear Drive Cams

Consistent balance & precision machining

Capable of higher RPM – More available power!

Includes Balancer Gear (can be removed)

Replaces OEM # 24100057

Proudly Made in the USA by S&S Cycle !

Tech Tips:-

The balancer gear CAN be removed!

Suggest Additional Purchase:

Main Bearing x 2 SS310-0593