Section Width235 mm (9.3")
Aspect Ratio128%
Rim Diameter50"
Overall Diameter1872 mm (73.7")
Sidewall Height301 mm
Circumference5880 mm
235/128R50 — Buy Tires

Everything to know about the 235/128R50 tire size

Size geometry

A 235/128R50 tire has a 235mm section width and a 128% aspect ratio, mounted on a 50-inch rim. Sidewall height works out to 300.8mm (11.84") and overall outside diameter is 1871.6mm (73.69"). At highway speed the tire completes about 170 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 235/128R50 is unavailable, the closest same-diameter substitutes on the same rim are 225/134R50 and 245/123R50. 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 235/128R50 you can upsize to 245/118R51 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 225/139R49 (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 235/128R50 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 235/128R50

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