Section Width135 mm (5.3")
Aspect Ratio27%
Rim Diameter20"
Overall Diameter581 mm (22.9")
Sidewall Height36 mm
Circumference1825 mm
135/27R20 — Buy Tires

Everything to know about the 135/27R20 tire size

Size geometry

A 135/27R20 tire has a 135mm section width and a 27% aspect ratio, mounted on a 20-inch rim. Sidewall height works out to 36.5mm (1.44") and overall outside diameter is 580.9mm (22.87"). At highway speed the tire completes about 548 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 135/27R20 is unavailable, the closest same-diameter substitutes on the same rim are 125/29R20 and 145/25R20. 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 135/27R20 you can upsize to 145/16R21 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 125/39R19 (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 135/27R20 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 135/27R20

tire_size.no_vehicles_found