Full hydraulic single speed disc brake system for road and CX. A drilled out lever blade shaves weight as well as improves grip. This is a full hydraulic disc brake system for drop bars. The TRP Hyles RS brake sports an integrated master cylinder in the low-profile ergonomically shaped lever body. This brake is for single speed aficionados, the rider who wants simplicity without sacrificing braking performance. Using our Hylex Di2 Adapter Kit this system can be used with a Di2 drivetrain. For product manuals see support page or click here. Not sure if your caliper is post mount or flat mount please contact our customer support team. Hydraulic disc brakes will now all come with our new EZ-Plug system. This is a system where there are two separate ends. The hose/caliper end, and the lever. Both are pre-bled, pressure checked, and have their own plug. Both left and right systems will come with 1900mm hoses allowing the easy mount as RHR and LHF or LHR and RHF.