●Fits 180mm front disc brakes and 180mm rear wheel, one each. ●High quality, ultra-light aftermarket disc brake adapters made from CNC machined alloy with flat profile for use with hydraulic or mechanical brakes. ●International standard is post-mount PM mounting with screws. 2 screws and washers are included. ●Fits all brands such as compatible with Shimano, compatible with Tektro, compatible with Hope, compatible with Magura, compatible with Promax, compatible with Hayes, compatible with Formula, compatible with Quad etc. ●The package contains 2 pieces disc brakes that are compatible with the 180mm front disc brake and the 180mm rear disc brake. Please confirm that your bike matches the size before purchasing.