I have a question on hydration while biking, I try to get about 3 hours of biking in during the weekdays (and 5 days on Saturdays) weather permitting. Normally I have a camel back that holds 2 liters of water, but I had a friend (he works as an EMT) tell me that I should drink Gatorade (or something like it) when biking that long.
Is that true? If so how much should I take with me? How about mixing water and Gatorade (2 liters of water and a 24 oz thing of Gatorade)?