I just recently mounted up my Trek District SS on my trainer. It is a Travel Tec Inertial which has just a bolt through the axle probably similar to yours. It fit up just fine. I was concerned about the gearing(55/20), but it is really about perfect at least for me. If it doesn't fit up good, you can use a stack of washers or even a wad of duct tape just to tighten up the fit without scratching. Good Luck!