Ive been working on a buggy for disabled folk, you may remember a few months back I was asking for design help. Well things are moving right along so
if you want to check me out have a click here:
I like the sound of your bearings. Max 50Kph ? Is this your personal best or the maximum you wish to go? You've perfected the turns, not easy I know.
I did the same when using a kite to pull a BMX, had to completely let go of the handle bars and swap hands when turning.