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Thread: K75S '91 Nail in tire

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  1. #1
    Registered User plehman's Avatar
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    K75S '91 Nail in tire

    I think I know the answer, but can't say I like it... but do you think this tire is toast? Yes, that is a nail through the tread. Argh.
    Would you think me foolish to plug it and ride? Seems to be holding air but that's just sitting through a Boston winter.

    1991 K75S rear tire, one year old, Bridgestone. Maybe 3000 miles on it (I have two bikes)
    thanks.
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  2. #2
    UJ tio jaimito's Avatar
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    Plug the Brick back tire.

    Quote Originally Posted by plehman View Post
    I think I know the answer, but can't say I like it... but do you think this tire is toast? Yes, that is a nail through the tread. Argh.
    Would you think me foolish to plug it and ride? Seems to be holding air but that's just sitting through a Boston winter.

    1991 K75S rear tire, one year old, Bridgestone. Maybe 3000 miles on it (I have two bikes)
    thanks.
    It doesn't look threatning to me. If you don't plug it, and leave the nail in, it will eventually develop into a small leak. I would deflate and do a simple rubber/rubber cement plug with a plugging needle trim off excess rubber, reinflate when you are done, it should be fine. It is square on the threads so it is an easy fix.
    UJ

  3. #3
    rabid reader dbrick's Avatar
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    I would not plug that tire.

    The second hole is in the sidewall, and although many of us will patch holes directly in the tread, sidewall patching is riskier because the sidewalls flex much more than the tread as the wheel turns. Is the hole in a place where flexion would be a problem?

    I don't know. Over my years of riding (now almost forty), I've had pretty good luck by assessing repairs by applying a very high bar: if a tire issue might be a problem, then I'll replace the tire. There's precious little rubber on the ground between you and the pavement: when a tire's getting thin, or a repair is edgy, I've always been happier just changing it.

    Once the back tire picked up a really big nail (16p) though the sidewall, just 10 miles after the tire had been installed. I grumbled, and moaned, and replaced the tire. Didn't think about the safety/repair issue ever again, and was content.

    YMMV.
    David Brick
    Santa Cruz CA
    2007 R1200R

  4. #4
    Debbie's Servant Lee's Avatar
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    Repairing the hole in the sidewall would make me nervous.
    You might be lucky and the nail is only through the rubber and not the cords??? Only way to find out is pull the nail and see if it leaks.
    Lee 2011 K1300S
    MOA # 30878
    Past BMW Bikes, 2003 K1200RS, 1991 K75S, 1987 K75T, 1984 R100RT

  5. #5
    rabid reader dbrick's Avatar
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    Quote Originally Posted by Lee View Post
    Only way to find out is pull the nail and see if it leaks.
    And what happens if, perchance, there's enough rubber to hold air while you fool around in the driveway, but it's thin and the hole opens up up as the sidewall flexes when you're going down the road?

    Not for me, thanks.
    David Brick
    Santa Cruz CA
    2007 R1200R

  6. #6
    God? What god? roborider's Avatar
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    I've successfully plugged many tires, from car, truck, to motorcycle. But I'd walk away from that one.
    Rob C. , Raleigh, NC
    '10 R12RT, R90/6
    2007 CBR600RR & 09 V-Star
    Suzuki DR 350

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