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1. Under Seat
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FFT Quick Bottle Drag Calculator
2. Between bars
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Super simple calculation of water-bottle and bottle cage drag
3. Downtube3
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4. Seat tube4
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Bottle positions
5. Underneath
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Bottle Positon (see fig)
5. Underneath
6. Down&seat tube combo
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aero
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Type?roundAero_medium5
Round_double
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Round_single
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cage
Round_small
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Your Ave Speed
30kphAero_large4
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30
Aero_medium
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Aero_small6
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Course Length
20kmCage Only7
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20
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40
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Include bottle weight in model
<< oops! not yet working
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WATTS LOST
0.5 watts
TIME LOST
3.5 secs
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vs no bottle/cage
allow 10s to calculate
vs no bottle & no cage
allow 10s to calculate
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Citations
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https://www.xlab-usa.com/aerodynamics.html
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https://www.aero-coach.co.uk/water-bottle-testing
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https://alavamagtest.wordpress.com/2011/09/28/free-speed-cervelos-tips-on-aerodynamic-hydration/
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https://triallan.com/2019/06/07/how-should-you-mount-your-rear-bottle-holder/
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