Section Width765 mm (30.1")
Aspect Ratio30%
Rim Diameter20"
Overall Diameter967 mm (38.1")
Sidewall Height230 mm
Circumference3038 mm
765/30R20 — Buy Tires

Everything to know about the 765/30R20 tire size

Size geometry

A 765/30R20 tire has a 765mm section width and a 30% aspect ratio, mounted on a 20-inch rim. Sidewall height works out to 229.5mm (9.04") and overall outside diameter is 967.0mm (38.07"). At highway speed the tire completes about 329 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 765/30R20 is unavailable, the closest same-diameter substitutes on the same rim are 755/30R20 and 775/30R20. 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 765/30R20 you can upsize to 775/28R21 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 755/32R19 (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 765/30R20 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 765/30R20

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