Dumb idea? The summer is ticking by.. I only have my mtn bike (rockhopper hardtail), and have done many rides of 30 and 40+ miles with absolutely no issues. I do that 3 days a week normally. I'd love to be able to do a century before winter creeps up. I'm considering a road bike, but still haven't gotten the cajonies up to cough up the dough, though it's a possibility in the near future.
I guess I'm just curious.. how many folks have done a century on a mtn bike? Moral support or a smack upside the head, this girl can handle either.