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Most aerodynamic position

  • 24-05-2011 2:42pm
    #1
    Registered Users, Registered Users 2 Posts: 2,907 ✭✭✭


    anyone hear David Harmon's comments just now on Eurosport. Hands on the hoods and crouched down is more aerodynamic than hands on the drops and crouched down according to wind tunnely testing by garmin cervelo i think.


Comments

  • Registered Users, Registered Users 2 Posts: 1,087 ✭✭✭nomadic


    I've been considering the same recently. I reckon I can get lower (or as low) on the hoods. I can get a bit narrower on the hoods anyway. Probably a personal thing.


  • Registered Users, Registered Users 2 Posts: 195 ✭✭Joeyde


    Im sure everyone has an opinion on this after the couple of weeks that were in it!

    Was pondering it myself battling down clontarf, keep on switching between the two.


  • Registered Users, Registered Users 2 Posts: 2,246 ✭✭✭Hungrycol


    I have experience dover the last few windy days that both hands either side of the stem, close together, in an almost tucked position can give good areodynamics for short periods.


  • Registered Users, Registered Users 2 Posts: 2,200 ✭✭✭manwithaplan


    I presume your average rider can generate a bit more power in the drops, even if it is less aerodynamically efficient? It always feels that way to me.


  • Registered Users, Registered Users 2 Posts: 6,440 ✭✭✭cdaly_


    Elbows on the pads, hands on the aerobars works for me... :D


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  • Registered Users, Registered Users 2 Posts: 6,440 ✭✭✭cdaly_


    Hungrycol wrote: »
    I have experience dover the last few windy days that both hands either side of the stem, close together, in an almost tucked position can give good areodynamics for short periods.

    I wonder how much of a difference a crouch vs upright in this mode makes?


  • Administrators, Social & Fun Moderators, Sports Moderators Posts: 78,393 Admin ✭✭✭✭✭Beasty


    Some of you guys should get a chance to test all this out tomorrow evening;)

    The key, as I understand it, is to get the airflow as smooth as possible. You are trying to minimise your frontal area and how your arms are positioned withing your overall "profile" will influence the airflows. What you dont want is to create a hollow with no easy way for the air to flow around you


  • Registered Users, Registered Users 2 Posts: 2,005 ✭✭✭ashleey


    Anyone using aerobars over the last few days has outstanding poise and balance!


  • Registered Users, Registered Users 2 Posts: 2,452 ✭✭✭SomeFool


    ashleey wrote: »
    Anyone using aerobars over the last few days has outstanding poise and balance!

    probably road rash and bruises too.... :eek:


  • Closed Accounts Posts: 413 ✭✭8kvscdpglqnyr4


    When I was watching the Tour of California I noticed a position that you don't see too often. Ben Jacques-Maynes had his elbows on the bars which isn't that unusual but he was still shifting and breaking with his hands ... which I think is unusual.
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  • Registered Users, Registered Users 2 Posts: 1,990 ✭✭✭cantalach


    When I was watching the Tour of California I noticed a position that you don't see too often. Ben Jacques-Maynes had his elbows on the bars which isn't that unusual but he was still shifting and breaking with his hands ... which I think is unusual.

    Nice. That would work fine with Shimano or Sram but not so well with Campagnolo given the position of the upshift lever.


  • Registered Users, Registered Users 2 Posts: 6,440 ✭✭✭cdaly_


    ashleey wrote: »
    Anyone using aerobars over the last few days has outstanding poise and balance!

    Thank you thank you...

    T'was interesting this morning into the teeth of a savage crosswind.


  • Registered Users, Registered Users 2 Posts: 1,990 ✭✭✭cantalach


    I presume your average rider can generate a bit more power in the drops, even if it is less aerodynamically efficient? It always feels that way to me.

    I'm guessing you meant that the other way around, i.e. that the average rider can generate more power on the bar tops even if it is less aerodynamically efficient?

    On a tough climb, many/most people sit more upright and hold the bar tops. In the drops, the hip angle at the top of the pedal stroke is smaller and this reduces the nett torque you can apply to the pedals. Also, the chest isn't as open when you're crouched low so you can't get as much air into the lungs and the diaphragm has to work a lot harder.


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