Hey, you haven't experienced nothing until you've had a couple of guys in their 70s look back just as you're catching up, grin evilly, and up their speed. Never caught them until the coffee shop at the end of the ride and I can motor along pretty well. We have some incredibly strong and fast older riders around here. They give "active senior" a new meaning. So, don't wait. You'll never catch them if you don't try!