Section Width115 mm (4.5")
Aspect Ratio492%
Rim Diameter28"
Overall Diameter1843 mm (72.5")
Sidewall Height566 mm
Circumference5789 mm
115/492R28 — Buy Tires

Everything to know about the 115/492R28 tire size

Size geometry

A 115/492R28 tire has a 115mm section width and a 492% aspect ratio, mounted on a 28-inch rim. Sidewall height works out to 565.8mm (22.28") and overall outside diameter is 1842.8mm (72.55"). At highway speed the tire completes about 173 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 115/492R28 is unavailable, the closest same-diameter substitutes on the same rim are 105/539R28 and 125/453R28. Both keep your speedometer reading within 1% — safe for daily use, ABS, and stability control. Always verify load and speed ratings before swapping.

Plus / minus sizing options

For a 115/492R28 you can upsize to 125/442R29 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 105/551R27 (minus-one) for a softer ride or winter setup. Both stay inside the Âą3% diameter tolerance that ABS and TPMS systems expect.

Vehicle compatibility

0 vehicles in our database run the 115/492R28 tire size from the factory. Aftermarket fitment depends on rim width, offset, and clearance — match these specs to your wheel before purchasing tires.

Vehicles Using 115/492R28

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