Section Width125 mm (4.9")
Aspect Ratio227%
Rim Diameter51"
Overall Diameter1863 mm (73.3")
Sidewall Height284 mm
Circumference5852 mm
125/227R51 — Buy Tires

Everything to know about the 125/227R51 tire size

Size geometry

A 125/227R51 tire has a 125mm section width and a 227% aspect ratio, mounted on a 51-inch rim. Sidewall height works out to 283.8mm (11.17") and overall outside diameter is 1862.9mm (73.34"). At highway speed the tire completes about 171 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 125/227R51 is unavailable, the closest same-diameter substitutes on the same rim are 115/247R51 and 135/210R51. 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 125/227R51 you can upsize to 135/201R52 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 115/258R50 (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 125/227R51 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 125/227R51

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