Horse Power?
 

Here is a rediculous, bike related, article I ran upon.

http://gizmodo.com/5634743/why-ride-...n-ride-a-horse

Did you know that 1 horsepower is equal to 745.7 watts?
So if can sustain 300W for a full hour (which is no mean feat), you're still not even making half a horse. :(

But on the plus side, few humans freak out and throw our rider every time we see a coiled garden hose.

I think my 4 year old son would love that. Seriously.