The hoods will also be able to communicate with most head units, though Shimano has recently ... hybrid of a majority-105 groupset with Ultegra/Dura-Ace shifters and rim brakes.

Shimano 105 Di2 Hydraulic Disc Brake Dual Control Levers (2×12-speed ... If you’re coming from older 11-speed levers, the hood shape is different (to mimic Ultegra and Dura Ace): a slightly more ...

Shimano says the 105 brake callipers have been reshaped in line ... We all liked the new shaped hoods and the internal cable routing makes for a cleaner looking front end, at the expense of ...

With that said, we decided to review the new Shimano ... the 105 Di2 is semi wireless only for the road version, meaning triathletes still need to run wires from the shifters and base bar brakes ...