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270/40 R20 Tires

Everything we know about the 270/40 R20 tire size: 2 owner reviews covering 8,500 miles of driving, and EU label data for the tires you can actually buy in it.

  • 2owner reviews
  • 8,500 milescovered on them
270/40 R20 To scale, mm
Ø 724 270 108 20" 108

What does 270/40 R20 mean?

A 270/40 R20 tire is 270 mm wide, its sidewall is 40% of that width (108 mm) tall, and it fits a 20 inch wheel. That gives an overall diameter of roughly 724 mm.

270/40 R20 nominal dimensions
Section width270 mm
Sidewall height108 mm
Rim diameter20" (508 mm)
Overall diameter≈ 724 mm
Circumference≈ 2,275 mm
Revolutions per km≈ 440
Revolutions per mile≈ 708

Also written as

270/40R20 270/40 ZR20 270-40-20 270 40 20

Figures are calculated from the nominal size. A loaded, rolling tire runs a few percent smaller, and true widths vary slightly between makes.

Comparing two sizes? Use the tire size calculator →

What cars use 270/40 R20 tires?

The cars most often running this size in our owner reviews. Each links to the best rated tires for that exact car.

What drivers say about their 270/40 R20 tires

The most recent owner reviews fitted in this size, in their own words.

21%
Autogrip F107 270/40 R20 BMW 500 miles March 20, 2014
I had to have a tire replaced due to a puncture and this was all the mobile fitter could get. Initially I thought it was fine then I went into a bend in the wet and the car slid sideways and I mounted a bank. I was not going too fast !
This tire is lethal.
Wear I can't comment on as it lasted 2 weeks before I changed it.
Do yourself a favor and avoid this tire and there should be a law against this rubbish being sold
91%
Hankook Ventus ST 270/40 R20 Volkswagen Transporter 8,000 miles November 26, 2013
Excellent tire for the money especially in the wet, i'd say probably the best in the price range and better than a lot of premium tires, highly recommended on my T5, i will be using again and again.

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Where this data comes from

Owner ratings are submitted through the review form on this site, naming the tire, the size and the distance covered, and are checked by hand before publication. Test results come from independent published tire tests indexed by size, and label values from the EU EPREL database.

About the TR Score

The Tire Reviews Score rates each tire out of 10 using independent test results and the full body of owner reviews, so you can check a car-specific ranking against the wider evidence.

Who does the testing

Every test published as a Tire Reviews test is run by Jonathan Benson, who has been testing tires independently since 2007.

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