... on a flat road, or flat section of road, what is a typical speed and gear that you find yourself using? This 'speed' is something you could hold a conversation or sing/humm/whistle a tune while riding. No chest beating, no intervals, no tongue on the bars, and riding alone. If it's changed over time, was it weight loss? Increase in flexibility and change in your riding position? More time/interest? Other factors? If you're slower, why? Age, accident? Illness? Less time or interest? Just curious.