Twin Power 2017 M8 Model Except FXBR/S FXFB/S and FXDR/S Compensator Assembly Replaces HD 40100076The Twin Power Premium M8 Compensator Kit has been re engineered for better performance and reliability, while handling increased torque and horsepower. Kit includes a precision CNC machined 34T compensator sprocket and retainer nut, heavy duty spring pack, heavy duty thrust bearing and washer, shaft extension, and a heat treated and polished slider cam for a smoother operation. This Part Fits: Year Make Model Submodel 2018 2020 Harley Davidson FLDE