I'm not sure which forum to ask this question so I will start here.
I have a set of Shimano R500 wheelset that I would like to use on my cross bike. I want to know what is the widest tire that will fit? Is the number in the manual, which is 28 mm, absolute? What happen if I try to squeeze a 30mm (or maybe even a 32mm) tire on it?
Here's a link to the manual. http://www.shimano.com/media/techdoc...9830667569.pdf