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Thread: Try on Spox Spinergy and Right Run

  1. #1
    Senior Member sowseng's Avatar
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    Try on Spox Spinergy and Right Run

    Attachment 44284

    After trying out spox spinergy and right run in the hospital, I regret to have solid tire on my GTi.

    Now I really feel the rolling resistance of solid tire.

    With right run and spox spinergy, I only need to use one fourth of my strength that needed in solid tire. And it run as fast as anything.

    The response also very good.
    Life is meaningles, though you create the purpose.

  2. #2
    Senior Member sowseng's Avatar
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    Wonder, what is the scientific explaination of the solid tire rolling resistance?
    Life is meaningles, though you create the purpose.

  3. #3
    It has a lot to do with weight. The heavier the wheel the more force it will take to change the velocity of the wheel and the farther out from the axis of rotation the weight is the more that effect is magnified.

  4. #4
    It's also got a lot to do with the way the tire interacts with the surface - the air in tires allows for a compliance that reduces the resistance, and usually the compound that good quality tires are made from is a material that offers less resistance.

    Weight certainly doesn't help when you're getting them started, or changing direction, but if it was just weight, solid tires would roll better down hills because of a flywheel effect.

  5. #5
    I agree with Jeff, I don't think weight plays into much of the reason. I tried solid inserts a few years ago and couldn't believe how much harder it was to push, and this was when using very heavy mag wheels.
    C5-6 Complete - 8/13/1982

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