my regular schwalbe marathons 26x1.5 measure in real life to about 38mm.
If you mean the plain Marathon (with GreenGuard) I used the same tires last year on a 500 mile tour. Worked great. They are not on the bike right now and are not convenient to get to to look at, but I think that they are rated at 40X559, meaning 40mm width. But I never expect a tire to measure the exact same as the rating. I do not recall the pressure rating but I think that I was surprised how high the rating was.
This tire is available on the Schwalbe website in a 32mm width, but their website lists the max pressure at 6.5 bars which does not sound right to me for a 32.
Originally Posted by
Fangowolf
... ... I just wanted to make sure this wasn't normal and 26" tire widths weren't measured in some weird fashion.
There are several different "26" inch tires. If in doubt, look for the number 559 on the sidewall.