Originally Posted by
Rdmonster69
I think the only issue is that smaller road tubes become thinner when filling out larger tires. This may make a difference when it comes to flats. A road tube for larger diameter tires will maybe be thicker at the specified size.
I'm sure wider tubes are thicker, I just don't see how that could possibly matter if we're talking about the size difference between 25mm and 32mm tires. Maybe the tolerances are way tighter than I realize. It just seems like a bit of a stretch to think that an extra 7mm of width would really make any actual difference in terms of flat protection, considering how stretchy and thin inner tubes already are, and that whatever is piercing the innertube has already pierced the tire itself.