TRP HY/RD Mechanical/Hydraulic Post Mount Brake: Black. TRP HY/RD disc brake calipers have the power and modulation of hydraulic disc brakes. True plug-and-play compatibility with existing cable actuated systems.

Self-contained hydraulic caliper incorporates master cylinder

Hydraulic system self-adjusts for pad wear

Compatible with all mechanical road and CX brake levers

Brake pad composite is Resin with Metal Fibers

Resin with Metal Fibers pads are compatible with Resin-Only type rotors as well as standard rotors