A particular vendor on eBay has a wide range of inner tubes, all of which are branded as "Raleigh". However, there are just two types that would suit me:
- 26x1.95/2.125, Presta valve
- 26x1.5/2.125, Schrader valve
My tyres specify 26x1.95.
As I don't want Presta valves (and the Schader valve inner tubes are cheaper), I was wondering what detremental effect there would be, if any, to using the second type of inner tube which the wider range (1.5-2.125), when inflating it to the higher end of its range.
After reading Can I use an inner tube that's too narrow for the tyre?, it would appear that the more stretched an inner tube, then the more issues one may encounter.
In order words, is there any advantage (i.e. less porousity, less flats, greater mileage, etc.) when using an inner tube which has a more narrow toroidal diameter range? Why does one inner tube type have a more narrow range than the other type, and is it "better" to use a narrower ranged inner tube, than a wider ranged inner tube?