ooo wrote:fd-6870 auto-trim - does it work on v2.5.2 with 10sp rd?
@DeeHubbs
thanks. I try archived all possible versions, this one are missing.
I will try to mix 10sp road di2 rd with mtb di2 fd and fd-6870.
My 10sp FD fully trims with my 11spd RD. The trim points are matched to the RD perfectly.
I have not personally mixed the Road and MTB, but from what I understand is the v2.5.2 is the last version before they wrote the firmware to not allow mixing of different series. I bet that MTB and Road would play.
The tricky part is once you update the software you can't rewrite it backwards. I currently have a stash of parts that I purposely have not updated past v2.5.2 to be able to use them a s mix and matches.
But now that they have released the CS-R8000 11-34 cassette I can use all those old 10spd wheels again and not worry about having a 10sp RD. (I could even run a 53-39 big boy chainring here in the mountains )