Suitable for M975, M966, M596, Saint M800, XT 765, Hone M601, SLX M665, LX 585, Deore M545, M535, R-505, S-500, M975, M775. Material: copper fiber + anti-wear material. The steel back plate is hard and resistant to pressure, and it is not easy to distort or deform even under the high temperature of continuous braking, so as to keep the plate close and ensure the braking power and riding safety.