Shimano deore t615 trekking disc brakedeore fully bled hydraulic disc brake with easily adaptable post style caliper fo trekking rides features front fully bled lever and caliper comes without adapters or rotors giving you the freedom to customise to suite your bike can be used with the revolutionary centre lock rotor system which fits easily to centre lock compatible hubs alternatively conventional 6 bolt rotors can be used all in a choice of 160mm 180mm and 203mmopposed 2 piston design redu