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  1. #1
    Lanky G-Raf
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    Forget the fit. TT posture matters. (photos)

    Disclaimer: As a self-diagnosed amateur velo-phile with limited cash. But I do have a trainer, camera, and photoshop.

    It's difficult to maintain the posture, but consciously bringing in your shoulders and lowering your head helps.


    This is a merger of the two. In photoshop you can also measure coordinates, so you can calculate relative distance. I was able to reduce my horizontal torso area by 12%. I was also able to drop my head by about an inch.

    My season is officially over, but after doing this I'll be stretching my neck muscles more and I'll be doing long, easy rides on the TT bike, accommodating the correct posture. It's probably a bit easier than upping your power the same amount to compensate!

    Let me know what you think.

    Ryon
    Triton Cycling, UC San Diego (grad student)

    UC Irvine class of 2008
    Formerly of Anteater Cycling. Zot Zot Zot.

  2. #2
    Village Idiot
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    Interesting!

    Good on you for experimenting like this!
    Truth, like light, blinds. Falsehood, on the contrary, is a beautiful twilight that enhances every object.
    -Albert Camus

    Hammer Nutrition 15% discount!!!

  3. #3
    Wheelsuck Fat Boy's Avatar
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    It would be interesting to do some trainer time with your new posture to see whether it affects your power output. If not, then it's definitely a win-win proposition.

  4. #4
    ub3r n00b Youngin's Avatar
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    If it's difficult to maintain, you're probably using more energy and it could affect power output as well.

  5. #5
    Lanky G-Raf
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    That's a good point. Power loss is always a concern. Though the position mostly causes discomfort in the shoulders.


    Here is a comparison of what my current position is, and how I'd like to be for next season. Power loss is much more of a concern here. Through trial and error, and many hours on the trainer, I found my current torso height to be pretty close to ideal for me. Another cm lower and I start having minor breathing problems when pushing threshold.

    I'll be taking yoga to gain some flexibility while experimenting in a lower position this summer.
    Triton Cycling, UC San Diego (grad student)

    UC Irvine class of 2008
    Formerly of Anteater Cycling. Zot Zot Zot.

  6. #6
    Senior Member
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    Looks like the chair is getting a better posture, too. I am not sure you are comparing what you think you are here. The background should be identical.

  7. #7
    Senior Member Blossom's Avatar
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    Bike is identical. That is all that matters, not that the chair moved.

  8. #8
    Senior Member DannoXYZ's Avatar
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    Quote Originally Posted by Ryon View Post
    That's a good point. Power loss is always a concern. Though the position mostly causes discomfort in the shoulders.
    Typically actual amount of power-loss is more than outweighed by the improvement in aerodynamics.

  9. #9
    Lanky G-Raf
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    Quote Originally Posted by jgg3 View Post
    Looks like the chair is getting a better posture, too. I am not sure you are comparing what you think you are here. The background should be identical.
    I had my roommate take two photos and he shifted position a bit. I was too lazy to set up a tripod. I simply aligned the bike frame. Good observation, though.
    Triton Cycling, UC San Diego (grad student)

    UC Irvine class of 2008
    Formerly of Anteater Cycling. Zot Zot Zot.

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