rautapekoni

I think there is a toggle for this in the UI settings.

Also grip for steering. Backwards facing teeth on the front wheel would just end up skidding a lot of the time and make the bike impossible to turn. Is there a video of this thing in action somewhere?

It shouldn’t be too hard to teach your friends hangman!

Newtons laws of motion, most clearly the third.

“If two bodies exert forces on each other, these forces have the same magnitude but opposite directions.”