You'll be fine. The adrenaline rush that comes from doing the ride will give you a boost in a way that's not present in your training rides.

If however, at some point in the ride to find yourself doubting your ability to finish, consider breaking down this seemingly overwhelming idea of a century into increments or chunks of smaller rides:

"Okay Self, over this last chunk of 20 miles I've felt good enough that I know I can do the next chunk of 20, too."

I find that breaking long rides down into groups of 20 miles or so is something I can easily get my head around. I keep breaking it down to something I feel I can manage until I'm at that last chunk and then it's over.

You can physically finish 70 miles now, so you will be able to finish that century. But so much of long rides is the mental part. If you can figure out a way to manage the mental part, you'll be fine.

The most important thing is keep putting in the saddle time before the event so that you know what will work for you.

I mostly rely on bagels, figgies, bars/gels, etc, but I've been known to stop at a mini mart or deli and pick up a sandwich if that's what I felt I wanted to eat. I do also always take along some gorp because I find the crunchiness satisfying--it makes me feel as if I'm eating something substantial yet it doesn't make me feel sluggish on the bike.


Good luck and have fun!