Avid Elixir R Hydraulic Bicycle Disc Brake (160mm, Front) Adapter: 160mmBrake Lever Actuation: HydraulicBrake Lever Use: Left,RightBrake Mount: 74mm/51mmBrake Reach: DiscBrake System Color: SilverBrake Usage F/R: FrontCable: HydroCaliper Type: 74mm Post MountDisc Mount Type: 51mm I.S. Front,74mm Post MountHose Length: rear (1500mm)Hub/Brake Compatibility: 6-Bolt DiscHydraulic Hose Length: 850mmRotor Size: 160mmWeight: 385g