I’ve been researching my bike hydration options for races (I use a Camelbak in training, and for 2 of the 3 Oly’s I’ve done, along w/ a bottle of Accelerade on the downtube), and came across Slowman’s treatise on the aero qualities of the most common systems here:
http://www.slowtwitch.com/mainheadings/techctr/waterbottles.html
The one thing I’ve found from my own experience is, that even if a bottle on the downtube is more aero while riding, it is NOT when ya hafta get offa the aerobars to grab it and drink it. And since I hate to do the above on the flats or downhills (wanting to maximize aero then), I find I only drink on climbs, which of course isn’t always the time you feel like doing so. This definitely rules out bottles behind the seat for me then, most likely.
So for me, a mostly or totally hands-free system seems to make the most sense, as I noticably slow down when drinking from a bottle, as opposed to no difference w/ a Camelbak (I have an old Razor, a roadie-specific model). But the C-bak takes time in T1 to put on, and is somewhat less aero.
So it seems that the Profile bottle (or similar) makes the most sense (for me), perhaps backed up w/ a bottle on the downtube for longer/hotter races. This seems like it would work for distances up to perhaps half-IM. No aero disadvantage, hands free, decent quantity of fluids.
I was also toying w/ the idea of one of those NeverReach systems, but, in light of them being (surprisingly) LESS aero, and expensive, and probably a PIA to keep clean (with all that tubing, a regular C-bak is annoying at less than half that run of tube), unless I was only going to use clear water, it seems like more hassle then benefit. (Plus, they look pretty dorky, IMO)
Advise? Suggetions? Personal experience?
Thanks in advance.