I was thinking after my last ride (which is scary).I wonder If I am consuming enough calories and what not on my rides .I was feeling pretty good for about 3 1/2 hours, then WHAM it hit me. My legs were saying " I'm givin it all she's got capin". So then I pounded a bottle of my go go juice and I was good till I got home. Maybe next long ride I will bump up the intake of calories and whatnot. I should not be having this problem right now since I have been in base training now since b-4 the 24 hour race in febuary. That is what makes me think nutrition is the problem. Who knows it could have been a fluke ride.I wonder how many calories I can consume per hour/water intake? I might need to ask around.I am consuming about 250 calories per 28 oz bottle per hour now.Maybe take it upto 300-350?I will have to do my homework on this one.