Other widths cover fractional and commercial rim widths that sit outside the standard quarter-inch steps. This width appears most often on 19 inch, 15 inch, 22 inch wheels, and it is sized for specialty tire sizes.
We list 516 wheels at this width. Width is what limits your tire choice: mount a tire that is too wide and the sidewall bulges, too narrow and the rim edge takes the hits. If you are between two widths, go with the one inside the tire manufacturer's recommended rim range.
