●US MODEL originally by Zoom ( Hlcorp) as Left for Front, Right for Rear, please measure your existing brake hose for appropriate rear length; ●Brake Hose Length Front 800mm Rear 1400mm ( Internal routing will have 900mm+1500mm) ●Material 3D Forged 6061 aluminum alloy ●Standard disc brakes for mountain bike, fat bike, some electric e-bike, BMX, ●you got a completed front & rear brake set including 2 mounting brackets which is addon value $10,will fit 160mm rotor