Add a smooth and custom touch to the rear end of your bike with this sprocket disc brake kit. A stock type master cylinder can be used to operate the brake. The sprocket disc brake kit consists of a stainless steel 51 tooth sprocket-rotor and a two piston caliper, with integrated bracket. Kit is supplied with all the necessary mounting hardware, pads, weld-on frame tab and a smooth billet cover to hide the mounting hardware. Available with a polished or black anodized caliper in combination with your choice of a drilled or slotted stainless steel disc sprocket.