The 1UP rack is the best rack that I have owned. We carried two bikes up the Cassier Highway last fall on our 5.0 TA and have used it on our spring trips here in Alaska. I have had to tighten it after really rough sections of road. On a recent trip with a section of road with severe frost heaves I did notice that the bikes handle bar was coming into contact with the back window. I just moved the rack out half a inch and problem solved.