In other words, a 235 standard-load tire's section width will be 235 millimeters (or 9.25195 inches) only when mounted on the industry-designated standard rim width and inflated to 35 psi. If the ...

The first designates the nominal tyre width in millimetres, and the second the bead diameter. A 28mm wide 700c road bike tyre, for example, would have an ETRTO number of 28-622.

The Vittoria Corsa Pro is one of the best road bike tyres out there, and is seen fitted to a good few teams' bikes at the Tour de France and throughout the season. For the majority of the season ...

Tire Size Ratings. I was talking to a friend about the tires I want to purchase for my '70 LeMans Sport. This led to a heated discussion (and a bet) about tires and how their sizes are rated.