Originally Posted by
chasm54
Absolutely agree with this. Everyone is different, and of course you don't tell us the size of the bottles, but but riding at any pace I get through 600 - 750ml per hour.
I use the 21oz. CamelBak bottles. I may have been short of water for a 68-mile ride, but that doesn't explain why I felt "off" after only 1/4-1/3 of the ride. My hip joints felt stiff, I felt pain in my left calf (there seemed to be some sort of impingement in the left groin from the saddle), and I just felt out of my game.