This brake set will allow you to run a rear brake on a track bike frame that is not drilled to accept a brake caliper. The kit includes a brake caliper, and pads, a cable, cable outer, lever suitable for drop bars, and the clamp kit. It is advised you apply something like electrical tape in between the clamp plates and your frames paint, to avoid scratching. These kits are very effective, and hugely popular for pro keirin riders who train on the road.