RR-
Wow Ironman aspirations huh? Well if you read some of my posts I'm training for one right now, so I defintely have been where you are at now- And not so long ago. One thing that I'm surprised Nanci didn't mention was a book called "long distnace cycling" It's put out by Bicycling magazine I believe. On her recomendation I got that book and it's now my bible. It does outline how your body uses fuel as your ride progresses, and the importance of eating and drinking early. You may also look into a little thing called a "bento box". It attaches to your top tube and stem with velcro and can hold your snacks. I hate gel (texture makes me gag) so I fill my bento w/ jelly belly sport beans, gummy bears,pretzel goldfish, and endurolyte tabs. That way whenever I need to eat it's right there. I also carry not only a sports drink- I use cytomax, but also water in a camelback. I have to tell myself to start drinking early, and sometimes I forget, but it's REALLY important. If you don't drink early your body will let you know later in the ride. Oh yes it will!!