Considering i got 13K miles from my tires (front 275/40/20 106w) its not too bad, bearing in mind its mainly done school run with my wife being the main driver. However they are expensive compared to Bridgestone run flat, have been told breaking performance are less responsive in wets, but seriously considering Bridgestones as they are also recommended by BMW.
315/30 R20 Tires
Everything we know about the 315/30 R20 tire size: 2 owner reviews covering 20,000 miles of driving, and EU label data for the tires you can actually buy in it.
- 2owner reviews
- 20,000 milescovered on them
- 21tires made in this size
315/30 R20 EU tire label data
EU label values are declared for each individual size, so the figures here are exact for 315/30 R20 rather than a range across a model. 12 tires carry label data in this size. The most common load index is 104 (up to 900 kg per tire). Speed ratings on offer: (Y) (301 km/h), Y (300 km/h).
A Best wet grip
4 tires in this size hold the top EU wet grip rating, class A. The highest scoring on Tire Reviews:
- Hankook Ventus Evo Summer 9.4
- Bridgestone Potenza Sport Summer 9.3
- Atturo AZ850 Summer
- Pirelli P Zero Corsa Asimmetrico Summer
B Lowest rolling resistance
The most fuel efficient choice: 1 tires in this size reach rolling resistance class B. The highest scoring on Tire Reviews:
- Vitour Tempesta P1+ Summer 4.8
69dB Quietest tires
The quietest 315/30 R20 tires are labelled at 69 dB external noise:
- Pirelli P Zero Summer 8.8
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 315/30 R20 mean?
A 315/30 R20 tire is 315 mm wide, its sidewall is 30% of that width (95 mm) tall, and it fits a 20 inch wheel. That gives an overall diameter of roughly 697 mm.
| Section width | 315 mm |
|---|---|
| Sidewall height | 95 mm |
| Rim diameter | 20" (508 mm) |
| Overall diameter | ≈ 697 mm |
| Circumference | ≈ 2,190 mm |
| Revolutions per km | ≈ 457 |
| Revolutions per mile | ≈ 735 |
Also written as
315/30R20 315/30 ZR20 315-30-20 315 30 20
Figures are calculated from the nominal size. A loaded, rolling tire runs a few percent smaller, and true widths vary slightly between makes.
What cars use 315/30 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 315/30 R20 tires
The most recent owner reviews fitted in this size, in their own words.
Changed the run flats on my 2008 BMW x5 to toyo proxy st front and rear partly due to price (half the cost) and firm ride. Very pleased with improved ride quality and no loss in grip wet or dry. Over 7000 miles later and minimal wear showing. Should easily get over 20000 miles all 4 tires. A friend got over 30000 miles from these tires on his vw touraeg.
Drive on 315/30 R20 tires?
Review your tires and help the next driver choose. It takes about five minutes, and every review on this page came from a driver who took them.
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.