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Flat tire, but no signs of puncture, leak or anything!!!

  #1  
Old 05-28-2010, 08:50 AM
supersnake83's Avatar
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Default Flat tire, but no signs of puncture, leak or anything!!!

Hello everyone,

When I opened my garage and was ready to move my bike to get access to the lawnmower, I had a flat in my front tire. There was no signs of any leak, puncture, screw/nail, valve stem problems or anything. The bike was fine the day before and I haven't had any problems since last year.

I filled up the tire with air, wiggled the valve stem a little bit and still no leaks. It's been a few days since and there was no change in air pressure, but I am just curious what could have cause all of my air to leak out with no signs of a leak. Temperatures outside have been fluctuating between 65 - 90F.

Any ideas? or was this just an air sucking invisible monster trying to make my day go bad?

Thanks.
 

Last edited by supersnake83; 05-28-2010 at 01:08 PM.
  #2  
Old 05-28-2010, 09:05 AM
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Is there any chance that someone let the air out of your tire?

Barring that, soapy water is real good at finding leaks.
 
  #3  
Old 05-28-2010, 09:10 AM
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Nobody has access to the garage but me (it's key locked and I have both keys).

I tried soap and water. No bubbles = no leaks.

I was thinking that my valve stem screw could have been the culprit, but I have a valve stem tool and it was tight.

This is just fishy and weird!
 
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Old 05-28-2010, 09:29 AM
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Originally Posted by supersnake83 View Post
Temperatures outside have been fluctuation between 65 - 90F.

Any ideas?
You answerd your question before you asked it.
 
  #5  
Old 05-28-2010, 01:07 PM
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Really?

Those temperature ranges would make my tire lose air?

My tire was fine all throughout the winter even with colder temperatures. I had my bike on the stands and the tires were off the ground, but those current temperature ranges are usual night/day (more like 55 - 65 night and like 70 - 80 day).

The funny thing is, the tire was fine the day before. It was just sudden. Bam, no air.

Oh, well. Its a new tire (meaning like under 500 miles) and I just didn't want to ride it if it possibly had a problem.
 
  #6  
Old 05-28-2010, 03:24 PM
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You have a leak somewhere, you just haven't found it yet. I'd pump it up to max recommended pressure and check it all again with some soapy water.
It's all you really can do.

And a 25F fluctuation doesn't make a tire just go flat....lol..
You can have a leak that may be worse depending on the temp (or angle or part of the tire the bike is sitting on), but if you have a well-sealed tire, temp changes won't make a huge difference like that.
 

Last edited by kilgoretrout; 05-28-2010 at 03:27 PM. Reason: added
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