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Old 05-13-2012, 04:37 PM   #1
SwimguyZ1000
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Problem with back tire

So, after looking for a solid 30 minutes to find a puncture hole, I can't. My rim is not bent in any spot and the tire is brand new. Why is it leaking air slow enough to take 3 days before it is flat? My old tire it took 2 days and I thought it was just because the tire was so old. Now that I have a new one this should not happen.

Anyone have any ideas?
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Old 05-13-2012, 04:52 PM   #2
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Valve stem?
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Old 05-13-2012, 05:04 PM   #3
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I second the valve stem idea. Get you a spray bottle with some soapy water in it, spray the valve stem, if it bubbles up then there's your answer.
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Old 05-13-2012, 05:19 PM   #4
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or just spit on it...lol

fill an ice chest with water and dunk the wheel in there if you cant find it on the bike
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Old 05-13-2012, 05:41 PM   #5
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make sure the valve stem has a cap too, and submerge for the bubble test...
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Old 05-13-2012, 08:04 PM   #6
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I third the dunk test......it will find all leaks.
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Old 05-13-2012, 08:34 PM   #7
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What j e hurst said you could try a spray bottle with a little soap soultion and check around the rim closley too,

Seems you have had the same problem with both tires so the rim and valve stem are common denominators

Dunk test good idea but more labor intnesive.
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Old 05-13-2012, 09:15 PM   #8
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Thanks for the wonderful ideas but as it turns out I didn't need to do any of it. I put some air in the tire to get some pressure for the soapy water test and as I was taking out the pump I heard a loud hissing sound. As it turns out the valve stem is really bad but because it stands straight up untouched it leaks super slow. A tad bit of pressure on the stem and that sucker blows air fast.


I know what to do tomorrow now, thanks!
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Old 05-13-2012, 09:16 PM   #9
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Drink some soap and the pee on it!

Did you replace the valve stem when you put on the New tire?
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Old 05-15-2012, 02:59 PM   #10
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replace with horizontal stems!
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