That's great! I rode a century for my 50th birthday a week or so ago. During the ride a friend in his late-20's complained that he was discouraged because an old man (me) was kicking his ass. I told him that should make him feel better, not worse, and that I was really happy there were guys 10 years older than me riding as much or more than me. When someone older is doing it, there's hope for you. When no one older is doing it.... uh oh!