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Is it safe to run directional tires backward

  1. #26
    Backwoods lobster boy number9's Avatar
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    Re: Is it safe to run directional tires backward


    Quote Originally Posted by keeena View Post
    I bet if the tire was mounted backwards, it would cool down instead of heat up.
    Yeah, but would the plane take off from the conveyor?

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  2. #27
    Super Moderator OreoGaborio's Avatar
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    Re: Is it safe to run directional tires backward

    Quote Originally Posted by number9 View Post
    Yeah, but would the plane take off from the conveyor?
    NOPE. UNPOSSIBLE.

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    -Pete LRRS/CCS #82 - ECK Racing, TonysTrackDays, Ironstone Ventures
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  3. #28
    Lifer loudbeard's Avatar
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    Re: Is it safe to run directional tires backward

    Quote Originally Posted by Kurlon View Post
    Now, to simulate what's actually going on, take that rubber band and stretch it around a plastic bottle. Now take that bottle and roll it around on the band. Note the lack of heat.

    More to the point, increasing the size of the contact patch does not increase the friction. The friction coefficient doesn't change based on the size of the patch. Unless the tire is sliding, there is no friction induced heat. You're back to just the heat of material deformation in which case a larger patch deforms the rubber less as the work area is larger. Upping the pressure so your patch is smaller will increase the point loading and make for a hotter localized zone which can be seen as tearing when you go too far.
    Queso I read this, then did some more reading so I could get myself a bit smatah. Although I was incorrect with my initial assessment, I did say "friction," which is the source of all heat generated in a tire.

    I'll go back to my corner now.

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    I went to MMI I know what Im doing here chief

  4. #29
    Equal opportnity offender Lxpony's Avatar
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    Re: Is it safe to run directional tires backward

    Quote Originally Posted by keeena View Post
    I've run tires backwards on the track w/ no problems. I was told the siping (grooves) are there for water dissipation. The sipes don't work well if running the tire backwards, but if you're in the dry then no biggie.

    Shot is shot though. If 1 side is truly totally worn out, I'd get a new tire.

    You can also run brake pads backwards if the material is worn down to the backing plate. Ive done thing this in a pinch

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  5. #30
    Backwoods lobster boy number9's Avatar
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    Re: Is it safe to run directional tires backward

    Quote Originally Posted by Lxpony View Post
    You can also run brake pads backwards if the material is worn down to the backing plate. Ive done thing this in a pinch
    I tried that but I couldn't figure out how to reinstall my brake rotors inside out.

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  6. #31
    Where is my fast? GixerJockey's Avatar
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    Re: Is it safe to run directional tires backward

    Quote Originally Posted by Lxpony View Post
    You can also run brake pads backwards if the material is worn down to the backing plate. Ive done thing this in a pinch
    Pro tip: replace your brake pads when half the material is remaining. They've already fallen off at that point and aren't stopping nearly as well as they used to.

    Plus, you won't have to admit that you don't so simple safety maintenance on a public forum.

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  7. #32
    Is this thing on? Mr. Kurtz's Avatar
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    Re: Is it safe to run directional tires backward

    Quote Originally Posted by GixerJockey View Post
    Pro tip: replace your brake pads when half the material is remaining. They've already fallen off at that point and aren't stopping nearly as well as they used to.

    Plus, you won't have to admit that you don't so simple safety maintenance on a public forum.
    Pro tip: learn to understand sarcasm.

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