I agree with others. Most first-time riders would think 10 miles to be a very significant ride. I'm a lifelong rider, and I think 44 miles is a long ride. My usual training ride is 20-30, and 40 is a longer ride. You'll be riding a century before you know it!

My legs almost never give out. Instead, my arms and shoulders start to hurt, along with my butt. I get "core fatigue" - my heart and lungs start telling me to get off the bike. However, I went on a 30 mile ride with my 23-year-old son a couple of weeks ago. It was his first ride in months. He was really a slug on the last 8 miles. He said his legs were really tired.

It takes all kinds, I guess.