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  1. #1
    Not obese just overweight ratebeer's Avatar
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    WIll rolling resistance improve as I lose weight?

    How much does weight play in rolling resistance? It will probably deform the tires more. WIll it affect the hubs as well? Is there a formula somewhere that will tell me what my rolling resistance will be at 180 pounds versus 220?

  2. #2
    The Site Administrator: Currently at home recovering from a couple of strokes,please contact my assistnt admins for forum issues Tom Stormcrowe's Avatar
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    Quote Originally Posted by ratebeer
    How much does weight play in rolling resistance? It will probably deform the tires more. WIll it affect the hubs as well? Is there a formula somewhere that will tell me what my rolling resistance will be at 180 pounds versus 220?
    This takes into account drag, rolling resistance, wind speed, altitude/air density, and temp/air density as well as grade! How's that!

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


    Edit: Also tire size, pressure, riding position, and bike geometry
    on light duty due to illness; please contact my assistants for forum issues. They are Siu Blue Wind, or CbadRider or the other 3 star folk. I am currently at home recovering from a couple of strokes. I am making good progress, happily.


    . “He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you.”- Fredrick Nietzsche

    "We can judge the heart of a man by his treatment of animals." - Immanuel Kant

  3. #3
    The Site Administrator: Currently at home recovering from a couple of strokes,please contact my assistnt admins for forum issues Tom Stormcrowe's Avatar
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    Also weight, and will give wattage results that agree closely with my bike computer, so the designer has a consistent algorithm.

    You can get your brake HP even if you want by going to this site and entering your wattage output as a decimal portion of a kilowatt.
    http://www.markhorrell.com/tools/power.asp
    on light duty due to illness; please contact my assistants for forum issues. They are Siu Blue Wind, or CbadRider or the other 3 star folk. I am currently at home recovering from a couple of strokes. I am making good progress, happily.


    . “He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you.”- Fredrick Nietzsche

    "We can judge the heart of a man by his treatment of animals." - Immanuel Kant

  4. #4
    Not obese just overweight ratebeer's Avatar
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    Wow, very cool. Thanks!

    So Zabriskie's legendary TdF time trial was sustaining around 500 watts for the duration of the event?! Oh my.

    This app is selling me new tires! Hehehe. They should have ads off to the side.

  5. #5
    Senior Member jaxgtr's Avatar
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    wow, I have some work to do to get to 500
    Brian | 2015 Cannondale Synapse Carbon 3 | 2014 Trek CrossRip Comp | 2013 Cannondale SuperSix (for sale)
    Quote Originally Posted by AEO View Post
    you should learn to embrace change, and mock it's failings every step of the way.

  6. #6
    The Site Administrator: Currently at home recovering from a couple of strokes,please contact my assistnt admins for forum issues Tom Stormcrowe's Avatar
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    Quote Originally Posted by ratebeer
    Wow, very cool. Thanks!

    So Zabriskie's legendary TdF time trial was sustaining around 500 watts for the duration of the event?! Oh my.

    This app is selling me new tires! Hehehe. They should have ads off to the side.
    Hmm, I never see ads at either one, but then again, I have popup blockers operating and don't use IE. I use Firefox and require specific authorization to be clicked before any added content or script can run.
    on light duty due to illness; please contact my assistants for forum issues. They are Siu Blue Wind, or CbadRider or the other 3 star folk. I am currently at home recovering from a couple of strokes. I am making good progress, happily.


    . “He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you.”- Fredrick Nietzsche

    "We can judge the heart of a man by his treatment of animals." - Immanuel Kant

  7. #7
    Senior Member yeamac's Avatar
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    Quote Originally Posted by Tom Stormcrowe
    Nice site. Glad someone is able to figure all that stuff out!

  8. #8
    Not obese just overweight ratebeer's Avatar
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    Quote Originally Posted by Tom Stormcrowe
    Hmm, I never see ads at either one, but then again, I have popup blockers operating and don't use IE. I use Firefox and require specific authorization to be clicked before any added content or script can run.
    No, no no. Sorry, the site sold me new tires not because of ads. I just plugged in my touring tires versus racing slicks. I gained 1.1 mph! BOOM, SOLD!!! CHA-CHING!!

  9. #9
    Third World Layabout crtreedude's Avatar
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    I think losing weight will increase resistance. After all, you will be much less round.

    Wait, you were talking about tires?! (I have been pretty round myself in the past, not picking on anyone)

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