Delta MegaRack Ultra Rear Bicycle Rack
If you plan to do some serious hauling, the Megarack Ultra from Delta is worth a serious look. Rated with a cargo limit of a whopping 66lbs, the Megarack Ultra more than doubles many other racks.The Megarack Ultra will fit most bikes thanks to it's easy to adjust legs. The best candidates to fit this rack would be mountain or hybrid bikes (without disc brakes) or road bikes that have proper rack mounts.
I just installed this rack on my 1200 trek and everything fits well except for the attachment points at the seat stays. I had to go to the hardware store and buy rubber coated d-clamps because they are not included. My kitty litter panniers also fit well on the rack.