Evolution Industries 30 tooth Primary Sprocket and Chain Kit
* Raise RPM to achieve maximum performance to eliminate lugging
* Constructed of aircraft quality steel
* Heat treated to insure maximum strength
* Kit includes USA Made Regina Chain and 30 tooth sprocket
* Almost 8 pounds lighter than stock
The Secret to a good launch from a dead stop is gearing!
A 30 Tooth front sprocket changes the O.E. primary gear ratio from 1.352 to 1.533:1 which dramatically improves acceleration in each gear.
* Will Also Fit 2006 Dyna
* Will Not Fit Touring Models.
* Will Not Fit Rocker & Breakout Models.
ECM re-flash is required to correct the functions of the gauges, cruise control, et via an aftermarket EFI tuner such as TechnoResearch & TTS Master Tune.