Originally Posted by
Greg R
Is this the same as using a straight edge?
It would work the same, yes. If the rear wheel isn't aligned with the bike, it will always want to go one way or the other. Obviously, this is much less critical with the front wheel.
Wheels can also be out of alignment, vertically. That would force the rider to lean slightly, to compensate. I'm not sure that that would make much difference, though.