Ok, yesterday I went on a ride that I normaly do which is what I normaly do. However I was riding with someone I had not riden with before, and he seemed to be a great climber. I'm not the greatest on climbs yet, but I am working on it. Anyways I kept running short of energy. I was constantly having to stop and take breaks. Normaly this does not happen to the extent it did yesterday. Even on the downhill sections I was struggling for energy to get greater speed. Must of been something I ate or didn't eat perhaps. Any ideas on a good diet for someone who rides about 4 times a week, usualy 6-14 miles each ride. Looking at doing my first XC race in 3 weeks. I keep telling everyone that I'm not old, just A number.....40.