Section Width105 mm (4.1")
Aspect Ratio54%
Rim Diameter20"
Overall Diameter621 mm (24.5")
Sidewall Height57 mm
Circumference1952 mm
105/54R20 — Buy Tires

Everything to know about the 105/54R20 tire size

Size geometry

A 105/54R20 tire has a 105mm section width and a 54% aspect ratio, mounted on a 20-inch rim. Sidewall height works out to 56.7mm (2.23") and overall outside diameter is 621.4mm (24.46"). At highway speed the tire completes about 512 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 105/54R20 is unavailable, the closest same-diameter substitutes on the same rim are 95/60R20 and 115/49R20. 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 105/54R20 you can upsize to 115/38R21 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 95/73R19 (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 105/54R20 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 105/54R20

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