The Di2 R785 STI Hydraulic Disc Brake with RS805 Flat Mount Callipers from Shimano is a pair of ST-R785 STI levers with RS805 callipers. The shifters use Di2 STI E-tubes, which are not included, for easy and precise shifting. The removal of traditional mechanical cables in favour of electrical wires eliminates poor shifting caused by contaminates, corrosion and stretching, and also provides effortless gear shifts. Di2 shifting technologies easy and precise, it offers light touches to be sufficient for both front or rear derailleur shifts. The kit is supplied without rotors, adapters and E-Tubes so you can choose the most suitable options for your set-up. Available in Black only, Sold as a pair.