Section Width105 mm (4.1")
Aspect Ratio406%
Rim Diameter39"
Overall Diameter1843 mm (72.6")
Sidewall Height426 mm
Circumference5791 mm
105/406R39 — Buy Tires

Everything to know about the 105/406R39 tire size

Size geometry

A 105/406R39 tire has a 105mm section width and a 406% aspect ratio, mounted on a 39-inch rim. Sidewall height works out to 426.3mm (16.78") and overall outside diameter is 1843.2mm (72.57"). At highway speed the tire completes about 173 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 105/406R39 is unavailable, the closest same-diameter substitutes on the same rim are 95/449R39 and 115/371R39. 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 105/406R39 you can upsize to 115/360R40 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 95/462R38 (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 105/406R39 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 105/406R39

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