I've had the same rack for a few years now, and it's excellent. My bike doesn't have any rack mounting points, and has disc brakes (which can sometimes make a rack difficult to fit), but the rack is very sturdy and supports more weight than similar racks (up to 50kg, I think).
However, it doesn't come with everything you need to mount it. And the shape of the metal "foot" that mounts to the QR skewer means that (on my bike) the tip gets pulled into a recess round the rear mech hanger. This caused my rear skewer to bend and snap -- obviously something pretty dangerous.
I got a washer to stop the mounting foot and skewer bending (okay... I bought 100 and threw 99 away
):
http://www.screwfix.com/p/easyfix-penny ... pack/8679pBut my skewer was only
barely long enough without the washer; with it, only about 1.5mm of screw thread protruded (which I also thought might be dangerous). Unfortunately QR skewers come in standard sizes, so I spent
ages buying all sorts of random ones until I found ONE supplier of QR skewers for tandems -- 10mm longer than normal, and just right:
https://www.sjscycles.co.uk/hub-spares/ ... -oln-hubs/Oh, and I had to buy some P-clips to attach the top of the rack to the frame:
http://www.tredz.co.uk/.Tortec-P-Clips- ... _27395.htmI asked Axiom for advice in how to mount the frame to my bike safely, but they were completely useless, claiming (in terse one-liner replies) that no one else had ever had a problem. So, pretty bad customer service. Lots of people must have had problems with the length of a standard QR skewer.
Anyway, having put the effort in and bought a few extra parts, it's a very-well made rack and I'm delighted with the end result.