I had the most wonderful experience today at my LBS - met a 76 year old woman. She was just amazing. Road as a girl, then stopped. Started back up again at age 48. Has ridden well over 100K miles since. She's gone across the US several times, plus to all sorts of foreign countries. She was buying a new bike, because her twenty year old one fell of her car. She lookes great, and was sharp as a tack. Makes me very hopeful for my next 26 years.