SHIMANO BR-RS305 Road Bike Mechanical Flat Mount Disc Brake Front Rear Caliper. 1, Front caliper only. 2, Rear caliper only. 3, Front + rear calipers. Pad mount: Pad axle. K05S-RX Resin (w/o fin). L05A-RF Resin (w/ fin). Brake type: Mechanical disc brake. Compatibility: NEW SUPER SLR. Come with brake pad, adapter and bolts. The SHIMANO RS305 mechanical disc brake is easy to control as well as set up and maintain. It mounts via SHIMANO’s Flat Mount interface. Package might be delayed as the public holiday, flight delay, weather, remote area effect. We will response to all enquiries within 24 hours, but please allow delay response for non-business time. We will do our best to help you resolve your problem. We only request that the item will be in its original packaging and in the same condition as you received it.