Originally Posted by Blindrage

Actually the physics of steering at anything above about 5-10 (depending on wheel rotation speeds) mph are even weirder. You turn by counter steering. That means that if you want to go left you actually push the bars a fraction of a degree to the right. I used to be a motorcycle safety instructor where this is both easier to see and harder to accept. We fought with students all the time trying to convince them that this is how things work. Finally they got us a good video of counter-steering taken at very high camera speeds. We would also have the student stand with us in front of someone riding and let them see the motions.

What happens is you turn the bar to the left for example. This causes pressure on the right outside edge of the tire which causes the bike to lean over to the right. That leaning combined with the pressure forces the bike to curve to the right.

I promise it works, and wish I could provide the video.