I ride a bicycle myself and this article show how to modify a bike for both front and rear storage.
http://dirttime.com/bug-inbug-out-bicycleFor my personal use, I've built a bike trailer out of aluminum flag poles, wood and solid wheels from a wheelchair. The trailer can also be hand-pulled when I need to move it over non-bike friendly ground. I'll be bringing that trailer to some of our meetings and will be happy to explain construction to anyone.