Monowheel Problem

I am currently working on a scene for my game where the character rides a ancient monowheel that is a good way to get down a hill fast. He is going to be racing and I was trying to animate The outer tire and make it move forwards, but nothing I did would work.

I will need physics and stuff because I would like them to jump small jumps

Here is the .blend:

http://www.freewebs.com/magic-gun-productions/MonoWheel.blend

Thanks.

Just to let you know I figured it out, I don’t know what I was doing wrong so I just restarted and it worked!