The Tektro MD-C550 is a dual-piston mechanical disc caliper designed for road bikes. Uses QBP Disc Pad Finder #55 brake padThe low-profile caliper design is compatible with road bikesDual-piston caliper provides steady braking power Rotor Included: NoPad Compound: Metal CeramicBrake Lever Actuation: Short PullBrake Caliper Type: Flat MountDefined Color: BlackWeight: 155