Hi ren230!
Enjoy your stay here. What we lack in glowing youthful health we make up for in some part by craftiness and persistence. The thing I've noticed being out on the streets is that there are plenty of older cyclists.
Heat & hydration issues are especially important for us. I've learned a bit about those by reading the Training & Fitness forum.
I'm 52. I have two stents. I'd like to have more people around who can call me Sonny, ha.