Section Width135 mm (5.3")
Aspect Ratio115%
Rim Diameter20"
Overall Diameter819 mm (32.2")
Sidewall Height155 mm
Circumference2571 mm
135/115R20 — Buy Tires

Everything to know about the 135/115R20 tire size

Size geometry

A 135/115R20 tire has a 135mm section width and a 115% aspect ratio, mounted on a 20-inch rim. Sidewall height works out to 155.3mm (6.11") and overall outside diameter is 818.5mm (32.22"). At highway speed the tire completes about 389 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 135/115R20 is unavailable, the closest same-diameter substitutes on the same rim are 125/124R20 and 145/107R20. 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 135/115R20 you can upsize to 145/98R21 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 125/134R19 (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 135/115R20 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 135/115R20

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