Originally Posted by
fuzz2050
Is there any evidence to support this claim? I've heard it said over and over, but it hasn't matched my experience at all. In fact, I've routinely kept inner tubes inflated to several times their normal size (outside of tires) around for months, and they don't seem to leak any faster or slower.
How much pressure were these tubes outside of the tires holding? 50 PSI? 100 PSI? More likely less than 10 PSI. Tubes at lower pressure will leak more slowly. Thicker tubes, all else being equal, will leak slower.