I'm so excited about your first oly ! It sounds like you are well prepared & everything is all set....with 2 great bike choices, how can you go wrong???

By now, you probably have your decisions nailed down, so just relax and enjoy! I hope you picked your tri bike because you will be blistering fast on it......if you are still figuring out how to deal with the limited hyrdation options, here are 2 suggestions. FOR NOW, have an extra bottle (water or sports drink as you prefer) in transition. Take a couple of good swigs before setting out on your bike. And a couple more before heading out on the run. Yes, it will take 10 or 15 extra seconds, but you'll have the water in you & that's a good thing. FOR LATER, I strongly recommend the type of drink system that fits between your aerobars (there are various manufacturers, just make sure the one you buy is compatible with the type/brand of aero bars you have). With the drinking straw almost poking you in the nose (the key word there is almost) it's impossible NOT to drink often. For longer races, you can refill the between-bar carrier using your water bottle (frame mount or behind the seat mount) to make sure you take in enough fluids.