Friday I spent 3 hours riding 13.22 miles on the Pine Torch Trail in the Bankhead National Forest. The trail was wet, sandy, muddy, horse pooped, and anything else you can name. At times I was churning my bike up sloppy slopes or bogging down in wet marshy pits made by horses. I believe the 13 miles was almost as much as I could have managed. I was incredibly tired after. That 13 couldn't be harder than 40 on the road. I had planned on taking only 2 hours to make the loop. The trip up to the trailhead took longer than I expected. It was as far as I could go. Those last 2 miles were very tough.