group W bench
Join Date: Oct 2004
Location: Hinckley, Ohio
Bikes: Raleigh Prestige, GT ZR.1, Burley Duet, Schwinn Voyagre, Giant ATX 990, a couple single speeds and a fixed gear, plus my bike collection
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Trail a Trike
I built this for my autistic son. He has balance issues and when he was younger I would pull him in a trailer. As he grew I pulled him on a modified trail a bike. When he outgrew that, I was at a loss as to how we could get him out for family bike rides.
After some research, I came up with this idea. On some of the older adult trikes, the rear end wheel assembly was bolted on to a bicycle frame. You can buy after market conversion kits but I found an old Schwinn to use. I simply bolted it onto the rear of his trail a bike, added a longer seatpost and high rise handlebars. He was now able to ride with us again.
This is actually the second version of this design. The first had only one drive wheel. It worked O.K. except for sharp turns or riding on a sloped surface (like a banked curve). Last last year I found an old Schwinn Town & Country trike. What was unique about this was that it had a differential drive axle similar to the one on a car. It allows both wheels to drive going straight and tracks better around curves and on slopes. Plus it was a three speed and allows me to shift for him. I also removed the coaster brake internal assembly to disable it.
Here are some pics of it. I only got it done late last summer. We're looking forward to using it a lot more this year.