I've never done a century before, and I'm looking to do a pretty flat metric century (Montauk) in a month.
I just got back this morning from doing 5 laps in Central Park, and I almost averaged 14 mph. (Ran into a NYRR run at the end.) I felt like I probably could've kept going but my rear end was hurting a bit & I was just out of time.
For those w/more local experience: Does 5 relatively painless CP laps (30mi) mean I can do a flat metric (65mi) with no problem? In the case of Montauk, should I just experiment w/my seat position for the next couple weeks, finally buy a pair of cycling shorts, and aim for the 100?