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This 4-1/4" stroke 8-1/2" diameter flywheel assembly replaces the original flywheels in S&S® 80" V80 engines and in 1984-'99 HD® Evolution big twins
* Class A gloss black finish outside
* ‘E’ Marked
Comes in raw steel
• High flow washable and reusable cotton media filter elements provide performance
Renthal 123U52051G Ultralight Grooved 51T Rear Sprocket Silver (520 Pitch) This 4-1/4" stroke 8-1/2" diameterRenthal UltraLight Rear Chainwheels are CNC machined in Manchester, UK from 7075 T6 aluminum to extremely tight tolerances, 66% lighter than steel. Computer engineered and tested to ensure a precise fitment, concentricity and load dispersion with tooth profiling to provide maximum power transfer. With Renthal's combination of high strength base material, cutting edge manufacturing methods and exceptional hardwearing surface treatments its clear to see