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285/45 R20 Tires

Everything we know about the 285/45 R20 tire size: 4 owner reviews covering 60,012 miles of driving, and EU label data for the tires you can actually buy in it.

  • 4owner reviews
  • 60,012 milescovered on them
  • 141tires made in this size
285/45 R20 To scale, mm
Ø 765 285 128 20" 128

285/45 R20 EU tire label data

EU label values are declared for each individual size, so the figures here are exact for 285/45 R20 rather than a range across a model. 112 tires carry label data in this size. The most common load index is 112 (up to 1,120 kg per tire). Speed ratings on offer: Y (300 km/h), W (270 km/h), V (240 km/h), H (210 km/h), T (190 km/h). 55 tires in this size carry the 3PMSF severe snow marking.

A Best wet grip

41 tires in this size hold the top EU wet grip rating, class A. The highest scoring on Tire Reviews:

A Lowest rolling resistance

The most fuel efficient choice: 6 tires in this size reach rolling resistance class A. The highest scoring on Tire Reviews:

68dB Quietest tires

The quietest 285/45 R20 tires are labelled at 68 dB external noise:

Label values come from the EU EPREL database and apply to the EU market versions of each tire. Wet grip and rolling resistance run from class A (best) to E; noise is the measured drive-by figure. A good label is a floor, not a verdict - the tests and owner ratings above tell you far more.

What does 285/45 R20 mean?

A 285/45 R20 tire is 285 mm wide, its sidewall is 45% of that width (128 mm) tall, and it fits a 20 inch wheel. That gives an overall diameter of roughly 765 mm.

285/45 R20 nominal dimensions
Section width285 mm
Sidewall height128 mm
Rim diameter20" (508 mm)
Overall diameter≈ 765 mm
Circumference≈ 2,402 mm
Revolutions per km≈ 416
Revolutions per mile≈ 670

Also written as

285/45R20 285/45 ZR20 285-45-20 285 45 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 285/45 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 285/45 R20 tires

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

76%
Bridgestone Alenza 001 285/45 R20 Volkswagen Touareg 23,000 miles October 8, 2026

Impressive wear across the tread, on a 2.2 tonne 4WD & 4 wheel steer SUV.

Even with a nail in tread, held up well.

Quite noisy externally and internally, and grip in ice/snow is not great especially braking.

59%
Goodyear Eagle Sport All Season 285/45 R20 BMW 37,000 miles September 11, 2023
Disappointed with fast wear. 37,000 miles and tread wear bars are starting to show and small pieces of tread are peeling off.
17%
Achilles Desert Hawk AP 285/45 R20 Mercedes Benz SL63 AMG 12 miles November 30, 2022
Achilles Desert Hawk . These tires are dangerous, all 4 inner side walls have split after less than 20,000 kms. Tread wear is equal across the tire, just the inner side wall failed. Two tires blew out within a week and disintegrated. It looks as though the wire belting has just busted. I have photos to prove it. I would have attached pictures but I can’t. The top tread is perfect, only the side wall where it met the top has totally failed. It is a structural failure. If you have them fitted take them off.

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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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