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245/65 R20 Tires

Everything we know about the 245/65 R20 tire size: 1 owner reviews covering 6,000 miles of driving, and EU label data for the tires you can actually buy in it.

  • 1owner reviews
  • 6,000 milescovered on them
245/65 R20 To scale, mm
Ø 827 245 159 20" 159

What does 245/65 R20 mean?

A 245/65 R20 tire is 245 mm wide, its sidewall is 65% of that width (159 mm) tall, and it fits a 20 inch wheel. That gives an overall diameter of roughly 827 mm.

245/65 R20 nominal dimensions
Section width245 mm
Sidewall height159 mm
Rim diameter20" (508 mm)
Overall diameter≈ 827 mm
Circumference≈ 2,597 mm
Revolutions per km≈ 385
Revolutions per mile≈ 620

Also written as

245/65R20 245/65 ZR20 245-65-20 245 65 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 245/65 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 245/65 R20 tires

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

42%
Bridgestone Potenza RE050A Run Flat 245/65 R20 Mercedes Benz E Class 6,000 miles November 20, 2023
Gotta say, I’ve had some serious bad luck with my Merc E400 and its Bridgestone 245/35R20 run-flat boots.

It had new wheels and tires when I bought it with 14k miles on it last year. (Bought from a friend so I saw them installed by Wembley Tires).

Since then, I’ve done ~10k and have got through three tires, two of which blew on the inside rims, and one cracked wheel. I can’t believe I’ve gone through the better part of £2k in less than 18 months.

I’m based in London where you can seldom reach 30mph but where speed calming and potholes are ubiquitous. That said, I drive carefully, not aggressively, usually on the car’s eco setting for fuel economy.

The car itself is wonderful, but I’m beginning to worry about what it rolls on.

I know run-flats have poor reputations for durability and ride comfort, but I had them on my previous car for the seventeen years / 100k miles I owned it and hardly got through any more (Pirelli Zero 205/55) boots in all that time.

Bridgestone are a premium brand but are they really this fragile?

Seriously considering another brand or even saving a packet on non-runflats and slime….

Drive on 245/65 R20 tires?

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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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