I realize there are a lot of threads about trainers but I am interested in trainers that are good quality and that fit mtb wheels from 2.1 to 2.5. I have been looking at Minoura models (one of the few trainers I can find). I am wondering how the rim drive works with disc brake based rims (no brake bead along side). Are the wheel driven wide enough for a thick tire. And are these generally good trainers.