I believe the bike is called Focus Mares Ax3
http://www.heino-cykler.dk/Cykler/Cr...rosscykel.html
The 13mm would be the "inner rim width" on the picture found here
http://sheldonbrown.com/tire-sizing.html. It suprised me aswell.
Last edited by mozad655; 01-22-12 at 04:31 PM.