Section Width125 mm (4.9")
Aspect Ratio331%
Rim Diameter39"
Overall Diameter1818 mm (71.6")
Sidewall Height414 mm
Circumference5712 mm
125/331R39 — Buy Tires

Everything to know about the 125/331R39 tire size

Size geometry

A 125/331R39 tire has a 125mm section width and a 331% aspect ratio, mounted on a 39-inch rim. Sidewall height works out to 413.8mm (16.29") and overall outside diameter is 1818.1mm (71.58"). At highway speed the tire completes about 175 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 125/331R39 is unavailable, the closest same-diameter substitutes on the same rim are 115/360R39 and 135/306R39. 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 125/331R39 you can upsize to 135/297R40 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 115/371R38 (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 125/331R39 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 125/331R39

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