It wasn't long and it wasn't fast, but it was with my 4 1/2 year old grandson. The best part was that I dug out the old Trek 800 ATB so I could ride slow with him. Now this bike has been abused for 20 years and the hubs are so shot that both wheels wooble, but I took it anyway.
I had planned to just ride on the MUP but when we got to a place where a fire road crosses he said, "What's down there" and I said "I don't know, lets find out", so we rode through the rocks and mud puddles for about a 1/2 mile and found the road ended at a pond. There was a small loop single track off to one side so we took that. It went up a small knoll about 30 feet high that he had to get off his little 16-incher and push it up, but at the top we were looking at a cool little down hill. I went down first, took the corner at the bottom and stopped. Next he came down, full speed, laughing his head off. His mother would have killed me if she saw this. We did that little hill about 6 more times and laughed every time.
Throughout the rest of the ride we took various side trips off the MUP. We rode over rocks, roots, and through mud. We had a blast! When all was said and done we had gone 6 miles and he couldn't wait to tell Nanna how his bike got all muddy.
This, is what it's really all about.
Crap, now I want a mountain bike. My wife's not going to be happy