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Jorgan




Joined: 12 Nov 2007
Posts: 15331
Location: alles was ich bin, alles was ich war

PostPosted: Thu Mar 16, 2017 9:54 am    Post subject: Reply with quote

Chrace wrote:
Going downhill at 30mph I start considering whether it's worth to keep pedaling, and certainly not at any significant power. Smile


I generally just get into a tuck when I'm going faster than I can pedal - it's more aero...AND saves energy! It's here that I'll often close-down people ahead quite rapidly; that and I can handle a bike fairly well for a triaflete.

Knowing fast technical descents can also net you time, even if you just drive the course before the race.
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Cat5 in the Hat




Joined: 14 Mar 2011
Posts: 1047
Location: Berks

PostPosted: Thu Mar 16, 2017 10:41 am    Post subject: Reply with quote

JaRok2300 wrote:
Is there not an argument that slower riders benefit just as much (if not more) than faster ones because, although the absolute saving from aero is less, they benefit from it over a longer period of time.
I definitely get the comment about making a statement, I only recently bought a disc cover and second hand aero helmet for exactly that reason. Not sure if it was because I got any faster or just thicker skinned.


Kind of.

Aerodynamically they will benefit from the aero saving for longer. However as drag increases at the square of velocity (velocity that the testing was carried out at) any drag savings at a lower velocity will be minimal.

The drag savings vs velocity is exponential.
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Jorgan




Joined: 12 Nov 2007
Posts: 15331
Location: alles was ich bin, alles was ich war

PostPosted: Thu Mar 16, 2017 10:45 am    Post subject: Reply with quote

The bottom line, is that everyone can benefit from better aerodynamics to some extent.
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PCP




Joined: 13 Oct 2012
Posts: 1443
Location: Manchester

PostPosted: Thu Mar 16, 2017 11:18 am    Post subject: Reply with quote

I've been tweaking a few things on my bike to get a better position and more comfortable as I was a bit squashed. I nudged my saddle back, moved my bars/pads forward tilted the bars up a little to raise my hands. All these changes over a few months and independent of each other.
I am a lot more comfortable with no power sacrifice and am able to hold aero for longer periods.

Also had a poor fitting helmet (coming down over eyes and had to adjust it several times on the move) so am selling these:

https://garneau.com/int/en/p-09-aero-helmet-i
https://garneau.com/ca/en/vorttice-aero-cycling-helmet-c

To fund this -
http://www.chainreactioncycles.com/met-drone-tt-helmet-mtn-quebeca-edition-2015/rp-prod129647?gs=1&utm_source=google&utm_term=&utm_campaign=Chain%20Reaction-UK-PLA-PLA-All-DT-SE-Shopping%20QLB%20Manufacturer%20Desktop&utm_medium=base&utm_content=mkwid%7CsSEhtbg74_dc%7Cpcrid%7C161845658788%7Cpkw%7C%7Cpmt%7C%7Cprd%7C464894UK
I have tried this on and it is a much better fit, great visibility for me and fits my position quite well too.

When it gets delivered I'll get a couple of pics up for you to all slaughter Laughing
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