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  1. #1
    *****es love tarck kemmer's Avatar
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    that was weird...

    So I was sitting at my desk at 3:20 (I rode my bike to work at 8:30) and I heard my front tire start to leak loudly. I investigated and found no thorns or glass in the tire, then sudenly as I was spinning the wheel, it stopped. Just like that! There's still probably 40 psi in the tire, WTF?

  2. #2
    Senior Member velo2000's Avatar
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    I wouldn't worry about it. That happens to me all the time. Especially if I eat beans the night before.

    Seriously though, that is weird. Maybe a slow leak caused an air pocket to build up between the tube and tire (or rim)?

  3. #3
    Type 1 Racer rydaddy's Avatar
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    The night before my first commute I pumped the tires up to 100psi and checked everything over. I left the house for an hour and came back to the sound of my front tire blowing out!! Really wierd... the bike was in the same spot as I left it and the tires were rated for over 100psi. The leak turned out to be at the valve stem.

  4. #4
    One Hep Cat Joe Dog's Avatar
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    Quote Originally Posted by rydaddy
    The night before my first commute I pumped the tires up to 100psi and checked everything over. I left the house for an hour and came back to the sound of my front tire blowing out!! Really wierd... the bike was in the same spot as I left it and the tires were rated for over 100psi. The leak turned out to be at the valve stem.
    Never had a leak like the OP's but I blowed up a tire recently. The mystery blow-out thing happened to me two weeks ago while my bike was riding on the hitch mounted rack. I pumped up the tire before I left, loaded the bike, and when I stopped at my destination the front tire was blown off the rim at one spot and I had a long (16 inch slice) in the side of the tube. I blame a rim pinch that I did not catch mounting the tire and then strain on the pinched tube due to being brought up to pressure. My wife pointed out that this could have happened while I was riding and told me to be a little more careful about these things while I was changing the tube.

  5. #5
    Yeti
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    It was robots. with lasers.

  6. #6
    Senior Member Caspar_s's Avatar
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    Stuff in the tube blocking the hole.

    I had a slow puncture the other day - pumped it up and went to work. Decided it was slow enough so pumped it up and rode home. 3 days later it was still full (weekend).

  7. #7
    Bring That Beat Back Old Dirt Hill's Avatar
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    Check your valve stem. I've had a valve stem rupture but still leave 40ish psi still in the tube. I never figured out why it happened that way, but it certainly was a valve stem break (I could see it). I swapped the tube (it happened at work) before riding home and haven't tried pumping it back up again just to see when it starts hissing again.

  8. #8
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    coworkers are messing with your head

  9. #9
    The Legitimiser Sammyboy's Avatar
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    Mice.

  10. #10
    *****es love tarck kemmer's Avatar
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    Quote Originally Posted by Gerdz
    It was robots. with lasers.
    I was thinking aliens with telepathy, but lasers would make sense and robots do have those. I think you might be on to something.

    It was the valve stem. I tried gluing it back together since I used my last spare on a different bike (again). I could only get it to air up to about 60psi, but that got me to the train station and from the train station home. I still don't get how the aliens/robots managed to damage the tube without moving the bike at all and after so many hours.

  11. #11
    Senior Member
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    Quote Originally Posted by Joe Dog
    Never had a leak like the OP's but I blowed up a tire recently. The mystery blow-out thing happened to me two weeks ago while my bike was riding on the hitch mounted rack. I pumped up the tire before I left, loaded the bike, and when I stopped at my destination the front tire was blown off the rim at one spot and I had a long (16 inch slice) in the side of the tube. I blame a rim pinch that I did not catch mounting the tire and then strain on the pinched tube due to being brought up to pressure. My wife pointed out that this could have happened while I was riding and told me to be a little more careful about these things while I was changing the tube.
    I don't think your tire was seated right in the rim. The sidewall slipped off the rim, tube suddenly expands, and BOOM!

    And to have it happen while riding sucks, to that I can attest.
    Quote Originally Posted by Az B
    I have nothing against triathletes. Some of them are much nicer than the racer boy wannabes.
    Riding for Inner Pace

  12. #12
    You Know!? For Kids! jsharr's Avatar
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    Anti VC mice and carpet mites will do this all the time.














    I would call a cycling friendly exteriminator post haste. Otherwise, I would pull the tube and check around the valve stem.
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    Quote Originally Posted by colorider View Post
    Phobias are for irrational fears. Fear of junk ripping badgers is perfectly rational. Those things are nasty.

  13. #13
    pj7
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    Quote Originally Posted by Gerdz
    It was robots. with lasers.
    Those are my robots pal!
    I am a sig Virus. Please put me in your sig so that I can continue to replicate.

  14. #14
    Senior Member Paul L.'s Avatar
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    Remote control joke self leaking valve there my friend. Boris and Natasha were in the next room thinking that you were Moose and Squirrel. Mr. Peabody knows all about these things.
    Sunrise saturday,
    I was biking the backroads,
    lost in the moment.

  15. #15
    DNPAIMFB pinkrobe's Avatar
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    Quote Originally Posted by Gerdz
    It was robots. with lasers.
    Sharks. With lasers.
    Proud Member of the HHCMF
    '06 Cervelo Soloist Carbon | '09 Titus El Guapo | '09 Misfit diSSent | '09 Wabi Lightning

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