Well, I know the E.T.R.T.O. labels display bead seat diameter and width, but I am only familiar with height (which would be like "profile" or "aspect ratio" in automotive tires) displayed on high-end mountain bike tires.

Amusingly, here's an official complaint form on tire size discrepancy: http://www.etrto.org/page.asp?id=1727&langue=EN