The Radius disc brake generates braking power that is adapted for the requirements of BMX.A 2-metal piston brake caliper offers quick stopping power and can be easily bled via Two Way Bleeding.The 2-finger brake lever reach can be manually adjusted offering rider with smaller hands a comfortable setting for the lever.The Brake lever has a Hinged clamp, so you do not need to remove the grip for an easier install. Features: Enhanced Braking power compared to no disc brakes Adjustability of brake lever offers a wide range of reach making it perfect for large or small hands to easily reach lever Metal brake pads Works for 120 & 140 disc rotors Hose compatibility : SM-BH59-SS (Shimano & Elevn) Pads compatibility : B01S Resin (Shimano & Elevn) Mineral Oil.Sold as a lever & caliber kit that is Pre-Bled.Available in 3 hose lengths: 1300, 1400, 1450mm.