Features： 1、High Performance: The high performance disc brake caliper is formed in one piece, with good stability, sturdiness and durability. 2、High Strength: Bike disc brake kit is made of high strength aluminum alloy, precise manufacturing to ensure the stability of brake friction and strong braking. 3、Accurate Controllable: The cable is fine tuned, accurate and controllable, the force is transmitted directly, without breaking, and the screw of the crimping cover is neat and not easy to loose. 4、Replaceable Parts: Long rectangular opening is convenient for quick and efficient replacement, which shortens the braking stroke and maintains the brake feel. 5、Wire Core Fine Tuning Knob: Equipped with wire core fine tuning knob, inner rigid outer plastic wire tube bushing screw rotation fine tuning, the brake is more compact. Specification： Item Type: Bike Disc Brake Kit Material: Aluminum Alloy Disc Brake Caliper, Stainless Steel Brake Disc Disc Brake Caliper Specifications: Front Brake F160/R140, "F160/R140" F Stands for Front, R Stands for Rear, 160 and 140 Refer to the Disc Diameter (mm) Rear Brake F180/R160, "F180/R160" F Stands for the Front, R Stands for the Rear, 180 and 160 Refer to the Disc Diameter (mm) Disc Brake Caliper Size: A Pillar: Approx. 74.2mm / 2.9in, B Pillar: Approx. 51mm / 2.0in Brake Disc Size: Diameter: Approx. 160mm / 6.3in, Thickness: Approx. 1.8mm / 0.1in, Spacing Between Holes: Approx. 44mm / 1.7in Package List： 1 x Front Brake 1 x Rear Brake 2 x Brake Disc 1 x Hex Tool 12 x Screw