Section Width685 mm (27.0")
Aspect Ratio11%
Rim Diameter28"
Overall Diameter862 mm (33.9")
Sidewall Height75 mm
Circumference2708 mm
685/11R28 — Buy Tires

Everything to know about the 685/11R28 tire size

Size geometry

A 685/11R28 tire has a 685mm section width and a 11% aspect ratio, mounted on a 28-inch rim. Sidewall height works out to 75.3mm (2.97") and overall outside diameter is 861.9mm (33.93"). At highway speed the tire completes about 369 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 685/11R28 is unavailable, the closest same-diameter substitutes on the same rim are 675/11R28 and 695/11R28. 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 685/11R28 you can upsize to 695/9R29 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 675/13R27 (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 685/11R28 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 685/11R28

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