- Fully hydraulic brake system for Singlespeed, Cyclocross, or custom applications - Features weight-saving drilled out lever blade - Heat dissipating composite pistons self-adjust for pad wear - Includes hood-internal master cylinder, caliper & 5.0 x 1900mm hose (F&R) - Semi-metallic pads - All TRP hydraulic brakes use mineral oil - Rotors are not included