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Thread: Recurrent flats

  1. #1
    Senior Member izgod's Avatar
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    Recurrent flats

    I'm having the wierdest problem with the 20" rear wheel on my BikeE AT.
    I got a flat tire, and when I examined the tube the cut (like a snake bite)
    was on the inside, toward the rim, rather than on the outside where the tire meets the road. I checked the rim for any protrusions or sharpness and could find nothing. Everytime I put a new tube in, it blows out in exactly the same place in very short order. I know I'm missing something obvious here. I've replaced dozens of tubes in my lifetime, so I'm pretty sure I know how to do it correctly. I've been through 3 tubes today. Any ideas?

  2. #2
    Career Cyclist threadend's Avatar
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    Inspect the rim tape, even the slightest edge of an exposed spoke hole will cause a puncture when air pressure pushes the tube against the rim

    - or -

    Check the tire bead, I once had a reinforcing wire protuding through the casing on the bead that cased repeated flats.
    2003 Iceman Challenge - 2:34:55 - 897 / 2,000*
    2002 Iceman Challenge - 2:39:23 - 1093 / 2,186
    2000 Iceman Challenge - 2:49:18 - 1516 / 2,153
    *estimated

  3. #3
    Senior Member izgod's Avatar
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    Yup- it was a small tear in the tire right against the rim. Thanks for the help,Threadend. Sometimes we
    have to put it down and pick it up another day. Or maybe stronger bifocals...?

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