Tilting

Hello, Karstuhl here!

I have heard about some motorcyclists doing a trick: tilting the motorcycle so they go on the back wheel only. It is just that I do not see the tricky bit in this. I often tilt myself, going on my back legs only. Where is the difference? It is not hard for me, so why would it be for them? Is it just that motorcyclist humans do not have the same balance as dogs have? I guess so.