Flat performance question

Discussion in 'Motorbike Technical Discussion' started by Peter Moss, Nov 17, 2009.

  1. Peter Moss

    Peter Moss Guest

    Apparently most bike street tubless tires are designed to stay on the rim if
    they go flat, a few aren't. In the sense that you can hobble along at
    walking speed for quite a way and not wreck the rim. The tire will be
    hooped, but at least it stays on the rim and the rims OK.

    I had a link once to a table giving this information but lost it.

    I was wondering if anybody has a link to this info if they wouldn't mind
    posting it.

    Thnx

    Pete.
     
    Peter Moss, Nov 17, 2009
    #1
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  2. It's not like they're deliberately *designed* to stay on the rim. It's
    just that modern radial tyres need really stiff sidewalls, and also have
    a low aspect ratio, so they just tend to do so naturally.

    Never *heard* of the table to which you allude.
     
    The Older Gentleman, Nov 17, 2009
    #2
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  3. I once rode about ten miles on a completely deflated Michelin front
    tire, but I wouldn't want to try that on a deflated rear tire.

    Bridgestone has an English language pamphlet on their Japanese
    language website which states that their tires have had "run flat"
    capability since the 1980's.

    You can find the pamphlet if you google for "mcintroe.pdf"

    (If "The Older Gentlman" wants to argue with Bridgestone engineers,
    he's welcome to do some investigative reporting, instead of
    bullshitting with opinions on Usenet.)

    In general though, you can tell if a tire is likely to stay on the
    rim. Radials, with a
    low, stiff sidewall generally will stay on the rim even if deflated.

    Bias-ply tires with a taller profile and very flexible sidewalls might
    stay on the rim, but it would be very hard to control the motorcycle
    once they were flat and the
    sidewalls curled down into the drop center of the rim.
     
    Nagarjuna's Catuskoti clawed me!, Nov 17, 2009
    #3
  4. No, it doesn't. We've done this before.
    Yes, you can.
    I'm not arguing with them, I'm arguing with you. They do not state their
    tyres have run flat capability.

    Read the file yourself.

    End. Of.
     
    The Older Gentleman, Nov 17, 2009
    #4
  5. The Older Gentleman, Nov 17, 2009
    #5
  6. You can just about hobble home on a flat modern tyre - I managed to
    hobble home more than once on a flat antique tyre - but the tyres aren't
    run-flat in the accepted sense of the term. Check the link I posted
    again.
     
    The Older Gentleman, Nov 18, 2009
    #6
  7. However, the entire world has not accepted Neil Murray's personal
    point of view
    which uneasonably requires "run flat" motorcycle tires to meet the
    same standards as car tires.

    There are other riders who are reasonably satisfied with current
    motorcycle tire technology, which allows one to safely reach the side
    of the road, stop, and apply
    a temporary repair that gets them home or to a repair facility.
     
    âÍÁ Á³Õ »Ñ·àÁ ËØÁ, Nov 18, 2009
    #7
  8. Peter Moss

    TOG@Toil Guest

    Yes, it has. It just hasn't accepted *yours*.

    Here's a challenge for you, if you think otherwise. Show me a tyre
    manufacturer advertising "run flat" tyres for motorcycles. Off you go.
    There are loads of companies offering run-flat tyres for cars. But
    bikes?

    That is not what a tyre claimed to be "run-flat" is accepted by the
    entire tyre industry, and consumers worldwide, as providing.

    You lose.
     
    TOG@Toil, Nov 18, 2009
    #8
  9. Peter Moss

    S'mee Guest

    bullshit you lying faggot...you troll you utter utter spineless
    ballless wonder. You are an ignorant LIAR about everything except your
    racism and bigotry.
     
    S'mee, Nov 18, 2009
    #9
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