Originally Posted by
chucky
Just use a threaded type stem. Loosen the nut to realign the handlebars. If that's not quick enough then add a quick release to the top.
This is how one of my folding bikes does it. Nothing fancy; just a normal threaded stem with a quick release bolt.
I'll have to look into that. I wonder if there is a way to put limits on it. So that you could quick release it, spin it until it stops (so that its aligned along the body). Then when you want to ride, quick release it, spin it and have it stop perfectly so that its perpendicular to the bike. The idea here is speed and accuracy.