Let's see, I rode hard with a guy who was about 65 who was recovering from a bad crash the week before...he was going easy. I watched Leah Goldstein hammer so hard up a steep hill on a circut road race, I almost got sick just standing there. I can't imagine what the pro 1,2 peloton thought when she caught up with them. I caught up to a a woman on a old Schwinn Varsity'esque road bike with a big bag of fresh farmer's market veggies on her pannier rack...She jumped on and rode the rest of the way with me into town at about 35-36 kph the whole way. On a wheel or not, that was impressive. Around here, there's always someone stronger regardless of what you're riding and where.