Avid Elixir R Hydraulic Bicycle Disc Brake Adapter: 203mmBrake 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: 74mm/203mm Post Mount,51mm I.S. Front,Avid 185mmHose Length: rear (1500mm)Hub/Brake Compatibility: 6-Bolt DiscHydraulic Hose Length: 900mmRotor Size: 203mmWeight: 385g