Shimano Ultegra ST-R8170 12-Speed Di2 Hydraulic STI Lever Only Select Option:Left The mounting bracket U-bolts has

The mounting bracket U-bolts has been designed to attach the opposite way to conventional mounts so that it can be attached to motorcycle bars without coming into contact with the headstock as the mount is tightened

All-new SRAM CARBON TUNED™ crank technology provides extreme stiffness and light weight

100% waterproof and windproof upper

Rim depth: 21mm

Shimano Ultegra ST-R8170 12-Speed Di2 Hydraulic STI Lever Only Select Option:Left The mounting bracket U-bolts hasShimano Ultegra ST R8170 12 Speed Di2 Hydraulic STI Lever Only p> Wireless shifting and the best hydraulic disc braking anywhere, plus revolutionary eTap shift logic. What more could you want? While we could have stopped there, we went further and optimized the hood shape to fit hands of all sizes, for comfortable and controlled braking from any position. High performance Ultegra Wireless hydraulic Servo Wave disc brake Di2 STI's give you control,