We went out to Clarksburg and rode on a pump track for three hours yesterday. I rode my twenty inch street bike and Terry's Santa Cruz Dirtjumper. I'm kinda partial to the street bike cuz if a manual goes bad it's easier to step off the back and let the bike go. It looks like it is totally a skills course but it is also a huge total body workout, especially if you do multiple laps. I rode so long that I bonked and had to find some sugar. Today I am feeling it big time. I was stiff and sore in new places and my legs pretty much burned all day. But, I've been having such a good time riding in the dirt that I climbed up Stage Coach on my Monday ride around the lake.