Section Width125 mm (4.9")
Aspect Ratio143%
Rim Diameter56"
Overall Diameter1780 mm (70.1")
Sidewall Height179 mm
Circumference5592 mm
125/143R56 — Buy Tires

Everything to know about the 125/143R56 tire size

Size geometry

A 125/143R56 tire has a 125mm section width and a 143% aspect ratio, mounted on a 56-inch rim. Sidewall height works out to 178.8mm (7.04") and overall outside diameter is 1779.9mm (70.07"). At highway speed the tire completes about 179 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 125/143R56 is unavailable, the closest same-diameter substitutes on the same rim are 115/155R56 and 135/132R56. 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 125/143R56 you can upsize to 135/123R57 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 115/166R55 (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 125/143R56 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 125/143R56

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