Trek 3700 Topeak Rack.
Good Evening. I have a Trek 3700 and want to install topeak bag rack on it. But looking at the bike and topeak pictures I cannot see how it would mount since there is no mounting points on the frame or the disk brake caliper is covering them which again makes it a no mounting point. Did anyone install topeak rack on their 3700 and if so which model did you use? I'd really hate going buy, try, fail, return route. Thanks a lot for your help.