Section Width665 mm (26.2")
Aspect Ratio41%
Rim Diameter20"
Overall Diameter1053 mm (41.5")
Sidewall Height273 mm
Circumference3309 mm
665/41R20 — Buy Tires

Everything to know about the 665/41R20 tire size

Size geometry

A 665/41R20 tire has a 665mm section width and a 41% aspect ratio, mounted on a 20-inch rim. Sidewall height works out to 272.6mm (10.73") and overall outside diameter is 1053.3mm (41.47"). At highway speed the tire completes about 302 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 665/41R20 is unavailable, the closest same-diameter substitutes on the same rim are 655/42R20 and 675/40R20. 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 665/41R20 you can upsize to 675/39R21 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 655/44R19 (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 665/41R20 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 665/41R20

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