On horseback on mountain paths you have to lean forward/backward to keep your balance and to avoid getting thrown down and i thought the something like that might be the case here.. anyways you've got me hooked on to this. I've been watching too many videos. only there doesn't seem to be any unicycles around where i live. So will have to wait before i can try or perhaps build one.
I have never ridden a horse but sounds like there may be a small sismilarity here then.
There aren't any unicycles where I live either. The best place to start would probably be looking on forums for a second hand one. If you get a cheap one then it'll be ok but if you get a second hand good one then it will be much better but will have some scratches.
I think some of the videos got me hooked too!
Mowcius