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Flat tire due to Sharp Metal

Started by Roger Zoul · · Last activity · 27 posts · 1,178 views

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Road Cycling
Published
6 November 2006
Last activity
11 November 2006
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Roger Zoul
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  1. Yesterday I got a flat due to a sharp piece of metal in the road. There is a
    hole in the tire along the outer perimeter (not on the side wall). It's a
    brand new Kelvar belted tire, too.

    Is this tire toast now?

  2. Roger Zoul said:

    Yesterday I got a flat due to a sharp piece of metal in the road. There is a
    hole in the tire along the outer perimeter (not on the side wall). It's a
    brand new Kelvar belted tire, too.

    Is this tire toast now?

    Toast, unless the hole is tiny, less than 1mm. And even then I'd be
    looking to replace it pretty soon.

    Laters,

    Marz

  3. In article <[email hidden]>,

    Roger Zoul said:

    Yesterday I got a flat due to a sharp piece of metal in the road. There is a
    hole in the tire along the outer perimeter (not on the side wall). It's a
    brand new Kelvar belted tire, too.

    Is this tire toast now?

    Not necessarily. It may be repairable with a boot.
    I've made some fairly effective boots out of patches
    of jeans denim, liberally soused with contact cement.

    But just knowing the hole is there will perpetually
    nag at you until you eventually replace the tire.
    So will "feeling" the bumps created by any tire boot that
    you know is there. I guess it's a psychological thing.

    One thing to watch out for is dumpsters by construction sites.
    I give them a wide berth. There's often little bits of flashing
    trimmings lying on the ground around them. Those things
    are especially nasty.

    Kevlar might be bulletproof, but it sure ain't knifeproof.

    cheers,
    Tom

    --
    -- Nothing is safe from me.
    Above address is just a spam midden.
    I'm really at: tkeats [curlicue] vcn [point] bc [point] ca

  4. Roger Zoul said:

    Yesterday I got a flat due to a sharp piece of metal in the road. There is a
    hole in the tire along the outer perimeter (not on the side wall). It's a
    brand new Kelvar belted tire, too.

    Is this tire toast now?

    Depends on the size of the hole. What kind of sharp
    piece of metal are we talking about here? Unless the
    hole is large enough that it allows the tube to balloon
    through and make contact with the road surface, the
    tire is probably fine. Even then, it could likely be saved
    with a 'boot' as Tom mentions. I have had a few flats
    from nails, for instance--simply patched the tube and
    rode onward with no noticeable ill effects. Tires are
    tough, generally speaking.

    Robert

  5. Roger Zoul said:

    Yesterday I got a flat due to a sharp piece of metal in the road. There is a
    hole in the tire along the outer perimeter (not on the side wall). It's a
    brand new Kelvar belted tire, too.

    Is this tire toast now?

    I know folks have sed a variety of materials to make boots but Park
    sells a patch like boot material that works great. I've had some of
    these covering cuts caused by glass and they have been holding fine for
    several hundred miles.

  6. Roger Zoul said:

    Yesterday I got a flat due to a sharp piece of metal in the road. There is a
    hole in the tire along the outer perimeter (not on the side wall). It's a
    brand new Kelvar belted tire, too.

    Is this tire toast now?

    Probably. You may be able to boot the tire, but you need to do
    something there. If you don't, the flexing tire will use the hole to
    chew through the tube, resulting in more flats.

    Pat

  7. "Pat Lamb" wrote: (clip) you need to do something there. If you don't, the
    flexing tire will use the hole to

    Quoted message said:

    chew through the tube, resulting in more flats.


    ^^^^^^^^^^^^^^^
    One suggestion: let the patch serve as a sort of boot. Just be sure to
    remount the tire and tube with the same orientation as it came off. Maybe
    using an automotive patch, instead of the tiny bike ones, would give a
    little extra support.

  8. Roger Zoul said:

    Yesterday I got a flat due to a sharp piece of metal in the road. There is a
    hole in the tire along the outer perimeter (not on the side wall). It's a
    brand new Kelvar belted tire, too.

    Is this tire toast now?

    I had the same thing happen to a brand new panaracer kevlar belted tire.
    I just put a piece of duct tape on the inside of the tire. I haven't had
    any problems with it yet.

    Ken
    --
    The bicycle is just as good company as most husbands and, when it gets
    old and shabby, a woman can dispose of it and get a new one without
    shocking the entire community. ~Ann Strong

  9. Marz wrote:
    :: Roger Zoul wrote:
    ::: Yesterday I got a flat due to a sharp piece of metal in the road.
    ::: There is a hole in the tire along the outer perimeter (not on the
    ::: side wall). It's a brand new Kelvar belted tire, too.
    :::
    ::: Is this tire toast now?
    ::
    :: Toast, unless the hole is tiny, less than 1mm. And even then I'd be
    :: looking to replace it pretty soon.

    The hole is about 5 mm long overall, with 3mm of that being along the center
    axis of the tire and the rest at a 45 deg angle toward one side.

  10. Tom Keats wrote:
    :: In article <[email hidden]>,
    :: "Roger Zoul" <[email hidden]> writes:
    ::: Yesterday I got a flat due to a sharp piece of metal in the road.
    ::: There is a hole in the tire along the outer perimeter (not on the
    ::: side wall). It's a brand new Kelvar belted tire, too.
    :::
    ::: Is this tire toast now?
    ::
    :: Not necessarily. It may be repairable with a boot.
    :: I've made some fairly effective boots out of patches
    :: of jeans denim, liberally soused with contact cement.
    ::
    :: But just knowing the hole is there will perpetually
    :: nag at you until you eventually replace the tire.
    :: So will "feeling" the bumps created by any tire boot that
    :: you know is there. I guess it's a psychological thing.
    ::

    Yeah, and it is bugging me right now thinking about this. Dammit.

    :: One thing to watch out for is dumpsters by construction sites.
    :: I give them a wide berth. There's often little bits of flashing
    :: trimmings lying on the ground around them. Those things
    :: are especially nasty.
    ::
    :: Kevlar might be bulletproof, but it sure ain't knifeproof.

    Right! this was a flat, sharp piece of metal with the smaller width end
    sticking out and the larger end inside the tire. Interestingly, the tube
    shows what looks like a pinch flat (two tiny pin-head holes about 1mm apart)
    at the outer seam about 2.5 inches from the stem. Also, there is one tiny
    hole just opposite the other two but along the inner seam. However, the hole
    in the tire is about 180 deg opposite the stem location. Perhaps I rotated
    the tire while changing the tube?

  11. [email hidden] wrote:
    :: Roger Zoul wrote:
    ::: Yesterday I got a flat due to a sharp piece of metal in the road.
    ::: There is a hole in the tire along the outer perimeter (not on the
    ::: side wall). It's a brand new Kelvar belted tire, too.
    :::
    ::: Is this tire toast now?
    ::
    :: Depends on the size of the hole.

    In the tire, about 3 mm of it is along the center line of the tire with
    about 2mm going off at a 45 deg angle, more or less.

    :: What kind of sharp
    :: piece of metal are we talking about here?

    Flat, wider end inside the tire narrower end sticking out. Not quite
    triangular.

    Unless the
    :: hole is large enough that it allows the tube to balloon
    :: through and make contact with the road surface, the
    :: tire is probably fine. Even then, it could likely be saved
    :: with a 'boot' as Tom mentions. I have had a few flats
    :: from nails, for instance--simply patched the tube and
    :: rode onward with no noticeable ill effects. Tires are
    :: tough, generally speaking.

    I guess I could try booting it. I do have 3 other tires that I could put on
    there. It's just that its brand new, probably not even 100 miles on it yet.

  12. gds wrote:
    :: Roger Zoul wrote:
    ::: Yesterday I got a flat due to a sharp piece of metal in the road.
    ::: There is a hole in the tire along the outer perimeter (not on the
    ::: side wall). It's a brand new Kelvar belted tire, too.
    :::
    ::: Is this tire toast now?
    ::
    :: I know folks have sed a variety of materials to make boots but Park
    :: sells a patch like boot material that works great. I've had some of
    :: these covering cuts caused by glass and they have been holding fine
    :: for several hundred miles.

    What if I just used the patch material that ones uses on an inner tube, just
    applied to the inside of the tire?

  13. Leo Lichtman wrote:
    :: "Pat Lamb" wrote: (clip) you need to do something there. If you
    :: don't, the flexing tire will use the hole to
    ::: chew through the tube, resulting in more flats.
    :: ^^^^^^^^^^^^^^^
    :: One suggestion: let the patch serve as a sort of boot. Just be
    :: sure to remount the tire and tube with the same orientation as it
    :: came off. Maybe using an automotive patch, instead of the tiny bike
    :: ones, would give a little extra support.

    What do you mean by "remount the tire and tube with the same orientation as
    it came off." ?

    I would simply use the tube patch material on the inner surface of the tire
    opposite the hole. Obviously, I'd just put a new tube in the tire.

  14. Ken C. M. wrote:
    :: Roger Zoul wrote:
    ::: Yesterday I got a flat due to a sharp piece of metal in the road.
    ::: There is a hole in the tire along the outer perimeter (not on the
    ::: side wall). It's a brand new Kelvar belted tire, too.
    :::
    ::: Is this tire toast now?
    :::
    :::
    ::
    :: I had the same thing happen to a brand new panaracer kevlar belted
    :: tire. I just put a piece of duct tape on the inside of the tire. I
    :: haven't had any problems with it yet.
    ::

    Thanks. I may try this or something similar.

  15. "Roger Zoul" wrote: What do you mean by "remount the tire and tube with the
    same orientation as

    Quoted message said:

    it came off." ?

    I would simply use the tube patch material on the inner surface of the
    tire opposite the hole. Obviously, I'd just put a new tube in the tire.


    ^^^^^^^^^^^^^^^
    I was thinking the tube might be repairable. If you opatch the tube, and
    put it back in the same position, the patch acts as a sort of boot. If the
    tube is beyond repair, then obviously what I said does not apply.

  16. Roger Zoul said:

    Marz wrote:
    :: Roger Zoul wrote:
    ::: Yesterday I got a flat due to a sharp piece of metal in the road.
    ::: There is a hole in the tire along the outer perimeter (not on the
    ::: side wall). It's a brand new Kelvar belted tire, too.
    :::
    ::: Is this tire toast now?
    ::
    :: Toast, unless the hole is tiny, less than 1mm. And even then I'd be
    :: looking to replace it pretty soon.

    The hole is about 5 mm long overall, with 3mm of that being along the center
    axis of the tire and the rest at a 45 deg angle toward one side.

    Although you can probably get away with booting it in that area, and
    might further extend its utility via a little reinforcement by sewing,
    I'd replace it and ride with fewer worries.
    --
    Typoes are a feature, not a bug.
    Some gardening required to reply via email.
    Words processed in a facility that contains nuts.

  17. "Roger Zoul" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:

    Yesterday I got a flat due to a sharp piece of metal in the road. There is
    a hole in the tire along the outer perimeter (not on the side wall). It's
    a brand new Kelvar belted tire, too.

    Is this tire toast now?


    Same tire but somebody knifed the sidewall. I covered it with a dime and
    duck tape. Works beautifully. Then the bike got stolen a month later.
    Geez Louise.

    thank-you

  18. :: I had the same thing happen to a brand new panaracer kevlar belted
    :: tire. I just put a piece of duct tape on the inside of the tire. I
    :: haven't had any problems with it yet.
    ::

    this did not work for me. try the dime also. My tires were panaracer
    pansela 100psi.

  19. "nash" <[email hidden]> wrote in news:L%N3h.265496$1T2.194655
    @pd7urf2no:

    Quoted message said:

    :: I had the same thing happen to a brand new panaracer kevlar belted
    :: tire. I just put a piece of duct tape on the inside of the tire. I
    :: haven't had any problems with it yet.
    ::

    this did not work for me. try the dime also. My tires were panaracer
    pansela 100psi.

    I'm curious. So how did the duct tape boot fail to work?

  20. "BGH" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:

    "nash" <[email hidden]> wrote in news:L%N3h.265496$1T2.194655
    @pd7urf2no:

    Quoted message said:

    :: I had the same thing happen to a brand new panaracer kevlar belted
    :: tire. I just put a piece of duct tape on the inside of the tire. I
    :: haven't had any problems with it yet.
    ::

    this did not work for me. try the dime also. My tires were panaracer
    pansela 100psi.

    I'm curious. So how did the duct tape boot fail to work?

    Glad you asked For me anyway the tube pressure still protruded the tube
    outside . Hole size was pen knife size. I would have used a quarter but it
    would be too big for the narrow tires I use.

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