Bike Brake - Avid Disc Brake - Avid Juicy 3.5 Hydraulic Disc Brake 2010 Adapter: 160mmBrake Lever Actuation: HydraulicBrake Mount: 74mm/51mmBrake System Color: BlackBrake Usage F/R: FrontHose Length: front (850mm)Rotor Size: 160mmWeight: 405g