Tektro Auriga Comp Rear 160mm Hydra. Disc Brake Black Adapter: 160Brake Lever Actuation: HydraulicBrake Lever Use: RightBrake Mount: 74mmBrake Reach: DiscBrake System Color: BlackBrake Usage F/R: RearCaliper Type: N/AHub/Brake Compatibility: 6-Bolt DiscRotor Size: 160mm