Dual piston actuated mechanical disc brake for road and CX Works with ALL cable actuated road levers Compressionless (linear strand) housing is highly recommended Comes with TRP ultra-grippy semi-metallic pads Calipers are compatible with Shimano M525/M515 pads 160mm rotors recommended on front wheel Rotors, adapters, and flat mount mounting bolts sold separately Fork mounting requires FF-5 adapter