Originally Posted by
veteran_youth
There is no rule agaisnt running different length cranks on either side of the bike. Kids sizes are available in square taper, and I know that Malcom at Biseagal has tapped/shortened Race Face external BB cranks for a little person that bought a Giant Anthem off of us.
You can't have the seat set up porperly for one leg and have the left leg rotating on a shorter crank, it would mean everytime his left leg( the one that won't bend much) got to 12 o'clock he would have to stand up. Try riding withone leg bending fully and one leg not bending at all.
Thanks ihearld those are sms pretty good ideas.
I'm just trying to set him up so he can use both legs, he wants to go one leg only but I think he will get pissed off with hills, and we are ok looking at recumbant trikes for touring, not sure how recumbants would work in the city( because I know very little about them)