Section Width165 mm (6.5")
Aspect Ratio166%
Rim Diameter10"
Overall Diameter802 mm (31.6")
Sidewall Height274 mm
Circumference2519 mm
165/166R10 — Buy Tires

Everything to know about the 165/166R10 tire size

Size geometry

A 165/166R10 tire has a 165mm section width and a 166% aspect ratio, mounted on a 10-inch rim. Sidewall height works out to 273.9mm (10.78") and overall outside diameter is 801.8mm (31.57"). At highway speed the tire completes about 397 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 165/166R10 is unavailable, the closest same-diameter substitutes on the same rim are 155/177R10 and 175/157R10. 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 165/166R10 you can upsize to 175/149R11 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 155/185R9 (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 165/166R10 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 165/166R10

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