All - my compliments to those with offerings but do not own trailers....you are all indeed well read and all of your offerings are absolutely true. As a BoB owner since the late 90's you can put some stuff on the back over the rear wheel, just not much. If you need that much more do front panniers with the trailer, and/or re-evaluate what you're taking. Being in the winter of a 35 year military career and about to retire I'd like to relate a story, (not a fairy tale). After decades of a rucksack that was one size, the military appropriated their first, widely distributed internal frame (as opposed to our old external frame)rucksack with all the bells and whistles that included a separable "day pack". Total available space was 7200 cubic inches. What NEARLY everybody did was fill that puppy up and all of a sudden even the youngsters found they were having a really hard time land navigating with their gear. While BoB's are rated to 70 lbs. max. I have never taken that much at all on a tour, indeed most conventional wisdom is 35 lbs. and I cannot disagree as a rule of thumb. Now I'm not a minimalist touring camper, but I have learned that when packing, everything that goes must serve a daily use type of purpose and if it can perform multi-function....so much the better. Also, BoB's were designed primarily for single track touring...if you are on more pavement than less then maybe a trailer with two wheels should be considered. Hope this helps....Enjoy the voyage...Mark of the Dalton Boys