if you start the race well hydrated, you won't get dehydrated in 45 minutes. ut you will have a dry mouth.

chew gum! this is my solution.

I tried a camelbak one race. it got all tangled up when I shouldered the bike and I fell over trying to get it off my shoulder. it was very comical. I won't do it again.

one of my teammates puts a little tiny bit of water in a gel flask in her jersey pocket.