Section Width125 mm (4.9")
Aspect Ratio242%
Rim Diameter48"
Overall Diameter1824 mm (71.8")
Sidewall Height303 mm
Circumference5731 mm
125/242R48 — Buy Tires

Everything to know about the 125/242R48 tire size

Size geometry

A 125/242R48 tire has a 125mm section width and a 242% aspect ratio, mounted on a 48-inch rim. Sidewall height works out to 302.5mm (11.91") and overall outside diameter is 1824.2mm (71.82"). At highway speed the tire completes about 174 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 125/242R48 is unavailable, the closest same-diameter substitutes on the same rim are 115/263R48 and 135/224R48. 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 125/242R48 you can upsize to 135/215R49 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 115/274R47 (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 125/242R48 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 125/242R48

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