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Commuting Bicycle commuting is easier than you think, before you know it, you'll be hooked. Learn the tips, hints, equipment, safety requirements for safely riding your bike to work.

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Old 04-03-07, 03:18 PM   #1
kemmer
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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?
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Old 04-03-07, 03:35 PM   #2
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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)?
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Old 04-03-07, 03:47 PM   #3
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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.
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Old 04-03-07, 04:07 PM   #4
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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.
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Old 04-03-07, 05:22 PM   #5
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It was robots. with lasers.
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Old 04-03-07, 06:09 PM   #6
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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).
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Old 04-03-07, 07:04 PM   #7
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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.
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Old 04-03-07, 09:34 PM   #8
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coworkers are messing with your head
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Old 04-04-07, 02:10 AM   #9
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Mice.
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Old 04-04-07, 02:11 AM   #10
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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.
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Old 04-04-07, 07:46 AM   #11
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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.
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Old 04-04-07, 09:14 AM   #12
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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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Phobias are for irrational fears. Fear of junk ripping badgers is perfectly rational. Those things are nasty.
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Old 04-04-07, 08:07 PM   #13
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It was robots. with lasers.
Those are my robots pal!
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Old 04-05-07, 11:14 AM   #14
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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.
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Old 04-05-07, 02:45 PM   #15
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Quote:
Originally Posted by Gerdz
It was robots. with lasers.
Sharks. With lasers.
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