Turned 65 two weeks ago so this is my first visit to this thread. I was hoping I wouldn't see postings here about centuries but, alas, some people can still do it. Actually I never did ride a century, though I am sure I could have when younger. My maximum was 90 miles when I was 35, but that was touring with loaded panniers in hilly countryside and I had enough energy left to explore Seattle on foot that evening.

A few years ago I could do 100 km touring but my maximum seems to be about 60 km now. I can still go fast and I am strong up short hills, but endurance just isn't what it used to be.