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Frequently Asked Questions
This large tire size has an overall diameter of roughly 31.6 inches when properly mounted on a wheel. The 275 number refers to its 275mm tread width which is built for maximum traction.
275 is the tire's tread width in millimeters (around 10.8 inches). 70 is the aspect ratio, describing the sidewall height as 70% of the tread width. Lastly, 17 is the wheel diameter in inches.
These tires are specifically engineered to fit 17-inch diameter wheels and rims. In addition, most aim for an 8–10 inch rim width range for an optimal fit on trucks and SUVs.
