4in. Stroke Flywheel Assembly. Fits Twin Cam Dyna 2003-2005 & Touring 2003-2006.

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Features & Benefits:-* Heat-treated 4140 material is harder and 114% stronger than stock* Harder material, eliminates thrust washer* Larger 1.671in. 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 and less vibration* Reduced mainshaft deflecti on at high rpm – less vibration, reduced piston and rod side thrusting, prevents oil pump damage, fully compatible with gear drive cams* Capable of higher rpm – More available power!* Trued to with in .0005in. TIR * Rod Bearings have 20 rollers vs 18 stockTech Tip:-* Does Not Fit Dyna 2006.
MFR PART No: 320-0402

ROLLIES PART No: SS320-0402






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