I just joined this site and am pleased to find this thread for people with physical challenges. My wife Lisa has Cerebral Palsy and has been in a wheelchair her whole life. I built a trike a few years ago and we did some riding but then my daughter with Down Syndrome came to live with us and realized the two seat trike was not going to work so I traded it for a VW bug. I started building a three seat trike last summer and got it on the road in the fall just when the weather was getting cold. I've only done a few test rides around the neighborhood and it rode good although I found a few things I want to change. We just hang the wheelchair on some hooks and strap it down with bungee cords. I rode motorcycles for years I am to they age where I appreciate not having to balance a motorcycle and put my feet down every time we stop. The new trike drives like a VW car with handlebars instead of a wheel, very comfortable.