mkadam68 - that's great advice. Last time when I tried to do a Century (last September) I took my 50 lb mtb, hit heavy, heavy head winds, pushed myself hard (like I normally did), ate but apparently not enough and bonked hard at mile 50 where my chest seized up. From there on out couldn't get above 10 mph and had to walk up any sort of incline for the next 30 miles until I finally got to a subway stop.
So far the roadie I've been riding has been much, much easier to ride. Actually have to struggle to get my HR up (before 65% of my riding was in that red zone you were talking about, on the roadie more like 5%). I've done 60 miles with not much riding this winter and didn't feel it afterwards. So I really think the 145 is doable as long as I don't extend too much at the beginning. And eat real food along the way
