Section Width135 mm (5.3")
Aspect Ratio403%
Rim Diameter31"
Overall Diameter1876 mm (73.8")
Sidewall Height544 mm
Circumference5892 mm
135/403R31 — Buy Tires

Everything to know about the 135/403R31 tire size

Size geometry

A 135/403R31 tire has a 135mm section width and a 403% aspect ratio, mounted on a 31-inch rim. Sidewall height works out to 544.0mm (21.42") and overall outside diameter is 1875.5mm (73.84"). At highway speed the tire completes about 170 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 135/403R31 is unavailable, the closest same-diameter substitutes on the same rim are 125/435R31 and 145/375R31. 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 135/403R31 you can upsize to 145/366R32 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 125/445R30 (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 135/403R31 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 135/403R31

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