Section Width115 mm (4.5")
Aspect Ratio668%
Rim Diameter11"
Overall Diameter1816 mm (71.5")
Sidewall Height768 mm
Circumference5705 mm
115/668R11 — Buy Tires

Everything to know about the 115/668R11 tire size

Size geometry

A 115/668R11 tire has a 115mm section width and a 668% aspect ratio, mounted on a 11-inch rim. Sidewall height works out to 768.2mm (30.24") and overall outside diameter is 1815.8mm (71.49"). At highway speed the tire completes about 175 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 115/668R11 is unavailable, the closest same-diameter substitutes on the same rim are 105/732R11 and 125/615R11. 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 115/668R11 you can upsize to 125/604R12 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 105/744R10 (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 115/668R11 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 115/668R11

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