These motor sprockets eliminate the diaphragm spring style compensator and runs solid in your primary, preventing slippage on your hot motor set up. They also eliminate the issues of disintegrating stock- or Screamin' Eagle compensating sprockets. Sprockets are over half the weight of the stock compensator set-up, reducing the rotating mass. Made out of heat treated high strength tool steel with a black oxide coating. The 34 tooth version gives the stock drive ratio, whereas the 32 tooth version increases acceleration with 6%. Come complete with detailed installation instructions. The 32 tooth version also includes a special tensioner shoe to allow the use of the stock length primary chain. Fits all 2006 thru 2017 Dyna, 2007 thru 2017 Softail and 2007 thru 2016 Touring.