The 2021 31-Inch Tire Run was hosted by the Sierra Rock Crawlers pitting fullsize rigs against the Rubicon Trail—with nothing but tiny spare tires!

Rounding up 13 different all-terrain tires—all offered in a 31-inch tire size on either a 15- or a 16-inch rim—we dispersed them amongst staff and volunteers who would each drive two or three ...

Many drivers give little thought to the sizes of their wheels and tires except for cosmetic purposes. But, wheel size — and the size of tires you put on them — matter. Using improper tires can ...