New Shimano Di2 Dura-Ace R9200 & Ultegra R8100

[mcalista]

@CaptainThunderpants

I gotta say, the biggest disappointment for me is the lack of backwards compatibility. I would have quickly upgraded the RD, FD, cassette, and battery to get 12s if they worked with the current gen of shifters (8000/9100), but no way I’m buying a complete grupo just for 12s, especially at these prices.

The 12s TT setup does this (11s TT shifters operating the 12 FD and RD) - with the appropriate adaptor. Remains to be seen whether it is possible with road shifters, even if not officially supported.