Thanks for this thread. I just turned 50 this year and was starting feel my best years were behind me. Well, maybe they are, but as long as I have my health there are still quite a few good ones to go.
I've been at it since my Dad bought me that first mini-bike at eight years old. With any luck there's still another 25 or 30 years of riding left in me. I just wonder if all my old petro powered bikes will still be usable. Who knows what we'll be riding by then.