Originally Posted by
Sixty Fiver
The ERTO measurement shows diameter and tyre width, not height, and the width measurement is not always accurate.
Fitting a given tyre to a wider rim than it is designed for will reduce it's height as this will stretch the tyre across the rim and lower it's profile... tyre do tend to be about as tall / deep as they are wide when they are fitted to the right rims.
OK, thanks for the correction. However, it is weird that, on the side of the tire and on the Schwalbe website, it says both 700Cx
35 and
37-622 whereas some other Schwalbe tires say 700Cx
35 and
35-622.
It was because of the 700Cx35/37-622 discrepancy that I (incorrectly) deduced that the 700 measurement is width and ERTO is height.