4in. Stroke Flywheel Assembly. Fits Twin Cam Softail 2000-2002. - S&S

Features & Benefits:-

2003-2006 motors can be upgraded to the stronger “Timken" crankcase bearing.

Heat-treated 4140 material is harder & 114% stronger than stock.

Harder material, eliminates thrust washer.

Larger 1.671″ diameter crankpin.

Designed with increased cross-sectional area for increased crank-pin clamping force – No welding required.

Integral mainshafts – Eliminates two potential points of weakness.

Consistent balance and precision machining – Truer flywheels & less vibration.

Reduced mainshaft deflection at high rpm – less vibration, reduced piston & rod side thrusting, prevents oil pump damage, fully compatible with gear drive cams.

Capable of higher rpm – More available power!

Trued to with in.0005″ TIR

Rod Bearings have 20 rollers vs 18 stock

Proudly Made in the USA by S&S Cycle