For those who are interested, this thread is to discuss the topic of what makes a bike turn (a tangent from the skills thread).

Is it steering? Counter-steering? Leaning?

Can a bike with the headset welded and the bars set straight ahead turn? What if you walk this bike pushing it by the seat and lean it. Will it turn, or continue going straight?

For those who might think a counter-steer is always required, what about this?

EDIT:
Cool, the moderators merged the poll into this thread (Thanks!).

Here's the question:



If this guy, who is turning left, wants to turn more left, without shifting his body weight, does he need to turn the handle bars a bit left or a bit right?