The XT M8100 disc brake set features consistent braking performance and reliable stopping power in all conditions. Lightweight lever and caliper allow for quicker reliable braking power.   Features Greater flexibility and action-optimized cockpit layout. 10% stiffer than M8000 even under high temp conditions. Quicker brake engagement with shorter free stroke. Toolless reach adjust. Free stroke adjust. Quicker Piston retraction. Two piston. Banjo type connection and inside hose routing. PLEASE NOTE: Spare olive and barb not included.