The Speed Clip, a mechanical double piston disc brake that offers superior performance with Incredibly easy installation. This is a double-sided mechanical disc brake caliper where the two pads Actuate for uniform and precise clamping force. This results in a uniform pad and Carry. We added a simple cable barrel adjuster so the pads can be adjusted Free. There is no the drag on the fixed side, adding uneven wear or worse warping Your rotors. Work with all type levers on the market. Features: double-sided actuation works With any type of . The non-compression housing is highly recommended. Colour: black Material: alloy Package Contents: 1 x front brake 1 x rear brake Only the above package content, other products are not included. Note: Light 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.