Brake calipers include disc brake linings, which are sensitive, quiet, and resistant to high temperatures. Enhanced disc brake base design, high strength and resistance to breakage. 160mm rotor front caliper, rear caliper for 160 mm disc. Extra gadget-Disc rotor adjuster, helps you adjust the space between the rotor and the caliper. perfect substitute: fine workmanship, perfect upgrade parts for your bicycle, and packaging . Broad compatibility: Applicable to most mountain bike and road bike mechanical disc brake systems. Safety comes first, so we use high-quality accessories to match this kit. Each accessory is checked by layers, so you do n't have to worry about problems. color:Red Material:aluminum Package Contents: 1 x disc brake kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.