Brand New Front & Rear Disc Brake TWIN Calipers with Master Cylinder & Brake Pads brake caliper Mounting spacing:80mm Cable length:pls check picture Disc rotor :OD 180mm ,ID 47mm 6 Bolts,29mm Spacing Fitment: for 4 Wheel Drive Quad ATV UTV Buggy go kart Package include :1x front brake assembly+1x rear brake assembly +4x disc rotors