PEZ readers may remember my Colnago V3 project bike with Ultegra R8000: “The shifting is light, crisp, and sure. Dura Ace is supposed to be better, but I’m not ...
It’s a similar arrangement to how 2x11-speed electronic GRX is built up, with only the shifters and derailleurs along with the central Di2 battery and wiring differing between electronic and ...
Shimano's Di2 shifters communicate with the derailleurs ... or a similar thing happening to Charlotte Kool as she readied herself for a sprint finish. It could even mean danger.