I would suggest getting the XTR shifters and XT levers. According to Shimano, and from personal experience, you will get much better power and modulation with the XT levers than you will with the XTR levers. The XTR levers are basically designed just to be lighter for racing and dont have the same kind of power and modulation so its kind of a waste of money to go that route.blahwtf? said:iirc, they are interchangeable, i plan to go the other direction, xt calipers w/975 dual controls. i searched when i decided this and i recall finding out it was possible.