What's a CAM?

Regarding the OP: 5600 miles per annum would be considered a very adequate base for most people.

I bet most of the people who post here with any regularity (no bowel jokes, please) are in physical shape to do a century on short notice, especially if it's pretty flat.

What's harder for me is to be prepared for the pain of it all, knowing that more likely than not towards the end of the century I will fantasize over tossing my bike into the Ohio River.

The flesh is willing but the spirit is weak.