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- May 3, 2009
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Nitrogen molecules are larger than oxygen, so they don't seep past the rubber and lose air nearly as quickly. Also, nitrogen doesn't expand or contract like oxygen, so tires pressures stay more consistent.
x2 and there isnt any moisture unlike compressed air, which theoretically will prolong tire life if you own them that long lol. Oxygen is also known to degrade rubber (very slowly) so again, prolonging life over a LONG period of time.