Compatible with Shimano Road Brake Systems. Different compound replaceable rubber pads are available for this carbon finish aluminum cartridge system Carbon anodized aluminum cartridge pad holder and brake shoes set Length: 55mm With Tire GuideCompatible with Shimano Road Brake Systems including Dura Ace, Ultegra, 105 SCM including BR-7800, BR-7700, BR-6500, BR-6600, BR-5500 and BR-R600 (R55C2) Superior braking performance Higher Power Excellent wet weather control Performs well in both dry and wet conditions Low noise Length: 55mm Product Code: OBE-R34CRn4