You are reading a single comment by @davidual and its replies.
Click here to read the full conversation.
-
To get RD only on a Di2 system all you need to do is not fit a front derailleur.
If you want to, the shifter buttons can be remapped to your heart's content using the standard eTube software.
-
It should be possible to use a 9200 rear on an 11 cassette.
Is the spacing from 11s to 12s the same? Then you'd just wind in a limit screw I guess. But if the spacing is different, I'm not sure. I'd be questioning who has the money for DA rear deraillers but not 12s cassettes.
Some compatibility exists but mostly 12S is a new world.
https://bettershifting.com/12-speed-r9200-r8100-and-11-speed-di2-compatibility/#use11with12
Brommers
hippy
@davidual
I thought you had to use an xtr derailleur to get rear only function?
I’d like to see completely interchangeable function between 9100 and 9200. It should be possible to use a 9200 rear on an 11 cassette.