Section Width485 mm (19.1")
Aspect Ratio42%
Rim Diameter25"
Overall Diameter1042 mm (41.0")
Sidewall Height204 mm
Circumference3275 mm
485/42R25 — Buy Tires

Everything to know about the 485/42R25 tire size

Size geometry

A 485/42R25 tire has a 485mm section width and a 42% aspect ratio, mounted on a 25-inch rim. Sidewall height works out to 203.7mm (8.02") and overall outside diameter is 1042.4mm (41.04"). At highway speed the tire completes about 305 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 485/42R25 is unavailable, the closest same-diameter substitutes on the same rim are 475/43R25 and 495/41R25. 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 485/42R25 you can upsize to 495/39R26 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 475/46R24 (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 485/42R25 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 485/42R25

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