11R22.5

An 11R22.5 tire will be approximately 11 inches wide and 9.5 inches high. Low profile tires show the width in millimeters and the aspect ratio.

Truck tire sizes follow a standard formula. A standard profile will look like 11R22.5G and low-profile will have the form 275/80R22.5G. The 11 or 275/80 gives the section width and aspect ratio. “R” is for radial tires, bias ply tires will have a dash. The 22.5 is the wheel diameter; the “G” is the load rating. Section width is the widest point of an unloaded tire, and the section height is from the wheel rim to the outside of the tire.

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