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Re: Rider aerodynamics (was Re: Advice sought re buying a new bike. (incl which brands have what rep
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GYXU > Cycling > Re: Rider aerodynamics (was Re: Advice sought re buying a new bike. (incl which brands have what rep 23 February 2005 23:25:05

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Re: Rider aerodynamics (was Re: Advice sought re buying a new bike. (incl which brands have what rep

Guest 23 February 2005 23:25:05
 On Wed, 23 Feb 2005 09:43:26 +0000, Simon Brooke
<simon@jasmine.org.­uk> wrote:

[snip to reduce thread drag]>
This doesn't give the comparison between seated upright and full tuck,>but for example the difference between riding on the drops of the bars>vs riding on the tops is worth 90 seconds in 10Km, in still conditions.>90 seconds is 7.5%. Going onto aerobars increases the advantage to 120>seconds in still conditions, or 10%.>
But note that in a strong crosswind the advantage increases to 500>seconds, or better than 19%.

Dear Simon,

Here's a site that conveniently estimates the effect of the
positions that you want (and even things as small as
cadence) on speed:

http://www.kreuzott­er.de/english/espeed­.htm

Carl Fogel
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GYXU > Cycling > Re: Rider aerodynamics (was Re: Advice sought re buying a new bike. (incl which brands have what rep 23 February 2005 23:25:05

see also:
Annoying click while pedalling
Re: Anecdotal evidence.
pass tests:
see also:
http://demish.gyxu.com/i/temp/2/128...
...
...

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