Section Width105 mm (4.1")
Aspect Ratio50%
Rim Diameter31"
Overall Diameter892 mm (35.1")
Sidewall Height53 mm
Circumference2804 mm
105/50R31 — Buy Tires

Everything to know about the 105/50R31 tire size

Size geometry

A 105/50R31 tire has a 105mm section width and a 50% aspect ratio, mounted on a 31-inch rim. Sidewall height works out to 52.5mm (2.07") and overall outside diameter is 892.4mm (35.13"). At highway speed the tire completes about 357 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 105/50R31 is unavailable, the closest same-diameter substitutes on the same rim are 95/55R31 and 115/46R31. 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 105/50R31 you can upsize to 115/35R32 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 95/69R30 (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 105/50R31 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 105/50R31

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