Section Width105 mm (4.1")
Aspect Ratio23%
Rim Diameter20"
Overall Diameter556 mm (21.9")
Sidewall Height24 mm
Circumference1748 mm
105/23R20 — Buy Tires

Everything to know about the 105/23R20 tire size

Size geometry

A 105/23R20 tire has a 105mm section width and a 23% aspect ratio, mounted on a 20-inch rim. Sidewall height works out to 24.1mm (0.95") and overall outside diameter is 556.3mm (21.90"). At highway speed the tire completes about 572 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 105/23R20 is unavailable, the closest same-diameter substitutes on the same rim are 95/25R20 and 115/21R20. 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 105/23R20 you can upsize to 115/10R21 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 95/39R19 (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 105/23R20 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 105/23R20

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