This Sinz Brake Kit is a V-Brake Kit that includes V-Brake, Lever, Cable and all hardware needed to add brakes to your bike. You will need V-brake studs on your BMX Frame. These fit Race style brakes, not Freestyle bikes that take 990 U brakes. This set is a decent quality low priced solution. The Pro is for Pro 20 or Pro 24 and some larger wheels too.