Specification Brand BIKIGHTMaterial Aluminium alloy Stainless steelColor Black SilverRotor diameter 160mm 6 3 appr FeaturesAnti corrosive rustproof and durable Used for brake systems of ordinary bikes mountain bike Powerful squeal free braking performance All angle clamp installation for easy and precise positioning of brake pads Surface ground both sides for ultra flat braking surface high grade warp resistant stainless steel Attention F160 180 Front Rotor If installed at front wheel it fits 160mm 180mm brake disc R140 160 Rear Rotor If installed at rear wheel it fits 140 160mm brake disc Package Included 1 X Front caplier1 X Rear caplier2 X Rotors1 X Pack Screws Notice Please allow 1 3cm error due to manual measurement and make sure you do not mind before ordering Please understand that colors may exist chromatic aberration as the different placement of pictures