I invented a sport today, it's called Mountain Bike Walking.
Here's what you do, First, get cancer.
Second, load up your bike and drive to your favorite riding destination.
Lastly, push your bike around your favorite destination due to lack of energy and strength...fun times.
Well it wasn't all walking, but there was alot of it this morning.
I don't know how much of it is physical and how much is mental, but it sure gets frustrating....