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Old 11-25-2010, 12:53 AM   #522
SebC
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Quote:
Originally Posted by Barnes View Post
Oh I got it for free and haven't had a change in tire pressure in a year and a half. That last 20% must make all the difference especially with aluminum rims.
Rubber is less permeable to nitrogen than to the 20% of air that isn't nitrogen, so you don't lose gas as easily as with air if you have a good fit on your rims. But the pressure will still change with temperature.
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