6.5 inch wide wheels are a common factory width on compact cars and small crossovers. This width appears most often on 16 inch, 15 inch, 17 inch wheels, and it is sized for 185 to 215 mm tires.
We list 1,328 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.