This is second set of Pirelli tires that I have owned. Pirelli tires (in my opinion) are awful. Last pair would not balance or hold balance after the dealer replaced all 4 tires and performed multiple balance, now I have my second set that came with my 2022 BMW and the tires are bad after 30K miles of mild driving mix of highway and city. 4 tires and they have all different wear levels. How is that even possible. Will never by Pirelli's again. The brand is awful. I would pay more for Michelin. I road race motorcycles as well and my friends that run Pirelli's only run the once, they they flip to Michelin. I do not know how Pirelli is still in business as they have an inferior product (IMHO).
315/35 R21 Tires
Everything we know about the 315/35 R21 tire size: 1 owner reviews covering 31,000 miles of driving, and EU label data for the tires you can actually buy in it.
- 1owner reviews
- 31,000 milescovered on them
- 92tires made in this size
315/35 R21 EU tire label data
EU label values are declared for each individual size, so the figures here are exact for 315/35 R21 rather than a range across a model. 81 tires carry label data in this size. The most common load index is 111 (up to 1,090 kg per tire). Speed ratings on offer: (Y) (301 km/h), Y (300 km/h), W (270 km/h), V (240 km/h), H (210 km/h), T (190 km/h), Q (160 km/h). 30 tires in this size carry the 3PMSF severe snow marking.
A Best wet grip
28 tires in this size hold the top EU wet grip rating, class A. The highest scoring on Tire Reviews:
- Continental SportContact 7 Summer 9.7
- Goodyear Eagle F1 Asymmetric 6 Summer 9.7
- Michelin CrossClimate 3 Sport All Season 9.6
- Continental PremiumContact 7 Summer 9.5
- Bridgestone Potenza Sport Evo Summer 9.5
- Michelin Pilot Sport 4 SUV Summer 9.3
A Lowest rolling resistance
The most fuel efficient choice: 2 tires in this size reach rolling resistance class A. The highest scoring on Tire Reviews:
- Continental SportContact 7 Summer 9.7
- Pirelli P Zero Summer 8.8
69dB Quietest tires
The quietest 315/35 R21 tires are labelled at 69 dB external noise:
- Falken Azenis FK520 Summer 9.1
- Pirelli P Zero Summer 8.8
- Yokohama Advan Sport V107 Summer 8.8
- Pirelli Scorpion Winter Winter 8.6
- Hankook Ventus S1 evo 3 SUV Summer 8.5
- Michelin X Ice Snow SUV Winter 8.4
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 315/35 R21 mean?
A 315/35 R21 tire is 315 mm wide, its sidewall is 35% of that width (110 mm) tall, and it fits a 21 inch wheel. That gives an overall diameter of roughly 754 mm.
| Section width | 315 mm |
|---|---|
| Sidewall height | 110 mm |
| Rim diameter | 21" (533 mm) |
| Overall diameter | ≈ 754 mm |
| Circumference | ≈ 2,368 mm |
| Revolutions per km | ≈ 422 |
| Revolutions per mile | ≈ 679 |
Also written as
315/35R21 315/35 ZR21 315-35-21 315 35 21
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 315/35 R21 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 315/35 R21 tires
The most recent owner reviews fitted in this size, in their own words.
Drive on 315/35 R21 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.