I rode my bicycle today down the Cotton Belt Trail in Grapevine, TX with my friends, Robert A. and Scott U. It was my longest ride since I took up the hobby seriously this past spring, 23.4 miles with an average speed of 12.6 mph. It was everything I could do to keep up with them. By the time we got to the end, I was wiped. I didn’t bonk, but I had nothing left.