Originally Posted by
big john
They are stupid but I've done a bunch of them. In the early years of my club riding we did a century every Saturday. I did a bunch of charity centuries but I was usually scared of all the crazy descenders. I did one century last year.
I always do one New Years Day. The only thing that stops us is snow. Most of my endurance rides that are 4.5 hours are usually around 90 miles, and an extra few wouldn't hurt too bad. Do enough, you can pretty much get on your bike and do 100 miles any time you choose. Once you adapt your body to chew up fat instead of muscle, you can do them on a few bottles of Roctane drink mix.