Shimano Ultegra ST-R8170/BR-R8170 Di2 Disc Brake/Lever Set - Parvilla Cycle & Multisport, Edgewater, 443-949-7130 The home of Custom Bikes in the Mid-Atlantic - The home of Custom Bikes in the Mid-Atlantic -
New Shimano Dura-Ace Di2 R9200 and Ultegra Di2 R8100 go 'wiredless', 12-speed - CyclingTips