Section Width125 mm (4.9")
Aspect Ratio642%
Rim Diameter10"
Overall Diameter1859 mm (73.2")
Sidewall Height803 mm
Circumference5840 mm
125/642R10 — Buy Tires

Everything to know about the 125/642R10 tire size

Size geometry

A 125/642R10 tire has a 125mm section width and a 642% aspect ratio, mounted on a 10-inch rim. Sidewall height works out to 802.5mm (31.59") and overall outside diameter is 1859.0mm (73.19"). At highway speed the tire completes about 171 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 125/642R10 is unavailable, the closest same-diameter substitutes on the same rim are 115/698R10 and 135/594R10. 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 125/642R10 you can upsize to 135/585R11 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 115/709R9 (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 125/642R10 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 125/642R10

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