Originally Posted by
hairnet
Honestly, if you're a regular rider you'll be fine. Last summer I was hardly making 100 miles a week and still had no trouble on a century. As you said, this one will be flat.
I went from maybe 50-75 miles a week to a 130 mile ride. My butt hurt, but all else was good. 40 miles was on gravel/crushed limestone, too.