Join Date: Sep 2002
Location: Philadelphia suburb
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Originally Posted by MichaelW
Given a choice between a thinner and a fatter inner tube I prefer a thiner one for low weight.
Tansc, the other numbers on the tube/box indicate the recommended suitable tire widths, usually shown with a slash between the narrower and wider ranges: ie, 700 x 20/25, 700 x 35/43. The range is possible because tubes can expand.
Some people chose the thicker tube on the theory that a thinner tube will be stretched even thinner in the tire and thus present a thinner material to be punctured. Sounds logical, but the difference is probably pretty meaningless: once you get that thorn or sliver of glass, the tube's going to go sooner or later. But I thought I'd note the other point of view, especially considering that the weight difference is, for most of us, also pretty inconsequential.