Sorry to be a pest all.
I have a question regarding rear derailleurs. I see some people going for mtn bike sets while others use road sets.
It would seem to me running an XT rear would be better than an Ultegra set up.
Is there a reason NOT to go with the mountain rear derailleur?
An XT long cage would seem to be a good set up for a 12-25, with a 44/34 up frant no?