So, I read your review on all the confusing sizes with all the tire manufacturers. Here in the states most cyclists use the French measurements, i.e. 700c x 25. I just ordered some Continental tires for my gravel riding. I like some knobs on the tread, so I order "Continental Extra Puncture Resistant 700c x 28."
This has happened a few times as I remember. What I receive on the label is 28 x 1 5/8 x 1 1/8. That is another measurement for 700c x 28, I understand.
But what is odd is that on the tire the orange & gray logo reads is "Continental, RIDE TOUR , electric plug graphic, then 25, then EXTRA, Puncture BELT". When painstakingly read the black imprint on black tire info, it reads my good ol' 700 x 28.
So, when my ride buddies see that visible 25, they tell me that I should go at least to 28's. So, what does that "25" mean on the Continental logo?