Clarks cmd 17 mechanical disc brake rotorthe cmd 17 is a new lightweight mechanical disc brake system from clarks it is suitable for both road bikes and mountain bikes and works with all cable linear pull brake levers the integrated barrel adjuster allows you to fine tune the braking feel the caliper fits to your frame or fork via a standard post mount the brake comes complete with caliper rotor rotor bolts organic pads and brake adaptersfeatures cable operated disc brake suitable fo