What makes a bike turn

That's about as short and sweet as it can be put and still get the general point across. The only point I didn't see addressed was why the bike turns when leaned. That is because of the shape of the tires... When leaned over, the contact patch on the ground is "shorter" toward the inside of the turn, and as the tire rolls, the smaller circumference toward the inside doesn't go as far as the larger circumference toward the outside of the turn. Since the inside doesn't go as far as the outside, the bike turns.:beerchug:

You are correct. That is also precisely why the front wheel gets pulled into the turn after the bike is leaned over.

And the reason why we counter-steer to start a turn is due to a gyroscopic effect. If you take a gyroscope that is spinning vertically, and you attempt to turn it sideways, it will attempt to tilt onto it's side to keep it's own mass centered in the same space.

It was late last night and the pain meds were kicking in. Thanks for catching this.

:beerchug:
 
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