Description: * and *Made of material, and practical to use *Aluminum alloy rear disc brake, and useful.design for ebike,folding ebikes *With strong braking for force,with metal barke pads,Metal to make the metal to make the piece, the brake is no different, does not hurt the disc, strong restraint *Smooth and stable control. *Excellent heat dissipation effect. *Easy to install on your bike. *suitable for most standard mountain bikes, road bikes, folding bikes. It may not be suitable for special bikes. Specification: *Material:steel Front brake(F180-R160), Rear Brake(F160-R140) F160/R140: suitable for the Front wheel 160 for ROTOR F160/R140: suitable for the Rear wheel 140 for ROTOR F180/R160: suitable for the front wheel 180 for ROTOR F180/R160: suitable for the rear wheel 160 for ROTOR Special note: Please look at the installation hole distance, the installation hole distance is 51mm Item Weight: about 382g for a pair for ROTOR size: usual for 160MM for ROTOR Package Includes: list1: 1PCS brake list2:2PCS barke(rear+front) Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.