Dura-Ace Di2 (Dual Integrated Intelligence) moves to the next generation. Tested in competition and taken to victory by pro riders in all conditions, including the 2012 Tour de France Team Sky.
SM-BMR1 long internal type battery mount for internal frame cable routing.
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The long bottle cage mount for internal wiring. Only the mounts with the later firmwares will work with the newer Di2 systems (like this one was), Ultegra Di2 6780 in my case. It attaches to the bottle cage mounts and doesn't move around on the road.
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