Originally Posted by bhtooefr
There's a reason why I hate anything except ISO for tire size designations.
32-630, not 27 x 1 1/4.
nn-622, not 28 x (insert size here) or 700 x nnC.
I agree 100% - ISO is totally the way to go and it would clear up alll this "how narrow a tire can I put on this rim" threads. Now if we can just get the world to follow along.
BTW - after reading this, I still don't know why a 27 is larger than a 28. And I am not sure, but I think a 29is smaller than a 27 as well. C'est la vie.....