That is a kick a$$ wind tunnel graphic. Where is it from?
it may “LOOK” hideous… but it functions very well… i am actually considering one. someone i know has one and swears by it. since he is faster than me i will listen to his advice. google it and check it out
circa 2 minutes ago, but I had to use 4 zip ties 
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front view
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circa 2 minutes ago, but I had to use 4 zip ties
That’s like an extra 2 grams of needless weight. Shame on you. 
There have been some test showing a bottle on the down tube is more aero than no bottle at all in real world outdoor on a track setting. Down tube was more aero than seat tube which makes sense. So I would say aero bottle on downtube would be the winner (#4 option)
Am I the only one that hates the aero bottle on bars? I don’t like extra “stuff” on my bars. It affects handling with the extra weight up front plus it catches cross winds even more affecting handling. It’s not hard to stay aero while getting a drink from the down tube bottle holder. You don’t have to sit up everytime.
my version of #5:
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I thought John Cobb said that generally the best place for a standard bottle was the seat tube.
Gerard Vroomen has said that on cervelos downtube is better, and that depending on rider, for better or for worse, the effect of having a round bottle on the downtube on a cervelo was very miniscule, and called it one of those aero anomalies that could not be explained. That’s probably why Cancellara had a downtube bottle. Perhaps it tested better for him.
Gerard Vroomen has said that on cervelos downtube is better, and that depending on rider, for better or for worse, the effect of having a round bottle on the downtube on a cervelo was very miniscule, and called it one of those aero anomalies that could not be explained. That’s probably why Cancellara had a downtube bottle. Perhaps it tested better for him.
hmmm, coincidentally he would say that, and the P3C happens not to have a seat tube mount
are you able to pedal at constant power while in the aero position and grab the bottle? How hard is it to hold the bottle upright while in the aero position? seems like it would be hard to tilt your head that far back.
he said that before the carbon bikes came out. and he said that it applied to the Dual and P2SL as well.
that’s what I recall with some study someone posted here once.
he said that before the carbon bikes came out. and he said that it applied to the Dual and P2SL as well.
Hmmm…I found the opposite was the case with my Soloist (which is basically a Dual with a sloping top tube and a slacker seattube angle) when using a Bontrager speed bottle. It was slower with the Bonty bottle on the downtube, but no difference with it on the seat tube (as compared to no bottle). Just thought I’d throw that out there since it implies that the shape of the bottle can affect the result as well.
Measured at basically close to 0 yaw, of course
I haven’t tried it on newly acquired P2K yet…but then, I’m also working on an alternate hydration option for that anyway, so I’m not sure if I’ll get around to trying it in both spots on that bike
It’s not any different for me to grab a bottle from the front or from the downtube…one arm stays on the aerobar, the other arm grabs the bottle. Whether or not I’m at “constant power” – I’ll have to watch the PT and get back to you. Drinking in the aero position is fine for me, though YMMV.
I’ve raced in plenty of heat, and I am not really sure that over 40K you will actually benefit from carrying a bottle of any form…
Read on: Ingesting water or any liquid will cause blood to rush away from where it is needed in your legs (moving you forward) to your stomach. This will cause you to slow down Fiddling with a bottle will cause you to slow down (vs staying aero)
Now let’s consider that: Getting slightly dehydrated will also cause you to slow down a bit
So the tradeoff is whether slowing down from slight dehydration is less than from all the fiddling with the bottle and digestion.
Let’s put it this way…pretty well no serious runners will take in liquid during a high intensity 10K or 10 miler…they just run…
Even in the heat of Peurto Rico, you have plenty of cooling effect from airflow compared to a runner.
My suggestion is no bottle. Start the event well hydrated, end it slightly dehydrated…its likely faster than trying to digest and certainly more aero both from a static perspective (while mounted on the bike) and dynamic perspective (fiddling around vs not…)
Dev
I remember reading on here somewhere that studies found you performed better slightly dehydrated. Does anybody else remember reading that?
I know for me personally it seems like a psychological benefit when I drink water/fluids.
I am liking number 5, I just switched to a p2c and was thinking of trashing the profile bottle for IMAZ, although I love being able to drink without breaking position. Also I wanted to trash my x lab wing, it justs seems impossible to me that it does not “catch” air. I would have to reload at special needs and grab water from the stations, hmmm decisions decisions
What about hooking a straw/tube up to the bottle wiht #5? Would that work? Best of all worlds?
Pull a Bobby Julich and go hunchback style with a smaller cammelback under your jersey. I have done it several times and it works great but I am really only a 57 minute guy , the 52-55 minute guys may have a different opinion but it works for Bobby G, I would guess he is a 48 or better guy.