Compatible with Shimano Road Brake Systems. Replaceable rubber pad inserts are available for this carbon finish cartridge system which comes with the Triple pad as standard. Carbon anodized aluminum cartridge pad holder and brake shoes set Length: 55mm With Tire Guide For replacement brake shoes order OBE-R30PCompatible 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 For replacement brake shoes order OBE-R43P (triple). Also compatible with OBE-R40R (for normal rims), OBE-R41E (ceramic rim specific), OBE-R42B (carbon rim specific) and other Shimano replacement shoe inserts. Product Code: OBE-R31CPn4