juggler, just be aware that the axiom model you put up is made for road bikes using road bike caliper brakes. I put the non disc version of this on a bike in our family some years ago, its strongly built, but the qr thing works well but is fiddly a bit for rear wheel removal and putting back on--but its made for road bikes--hence the single arm horizontally going to the brake bolt area, not 2 like on regular rear racks.