335/30 R21 Tires
Everything we know about the 335/30 R21 tire size: 1 independent tire tests conducted in this exact size, 0 owner reviews covering 0 miles of driving, and EU label data for the tires you can actually buy in it.
- 0owner reviews
- 0 milescovered on them
- 1tests in this size
- 11tires made in this size
The quick answer
| Season | Owners' pick | Owner rating | Latest test winner |
|---|---|---|---|
| Summer | - | - | Pirelli P Zero Trofeo RS 9.3 The BEST Track Day Tires for 2024 |
Owner picks are the highest weighted owner score in 335/30 R21; test winners come from the most recent independent test conducted in this size. The full evidence is below.
Independent tire tests in 335/30 R21
Tires behave differently as sizes change, so a test conducted in your exact size is the strongest evidence there is. Every test below was run in 335/30 R21 - 1 in total, newest first.
Summer tire tests
| Year | Test | Winner | Tires tested |
|---|---|---|---|
| 2024 | The BEST Track Day Tires for 2024 | Pirelli P Zero Trofeo RS | 6 |
335/30 R21 EU tire label data
EU label values are declared for each individual size, so the figures here are exact for 335/30 R21 rather than a range across a model. 9 tires carry label data in this size. The most common load index is 109 (up to 1,030 kg per tire). Speed ratings on offer: (Y) (301 km/h), Y (300 km/h), W (270 km/h). 2 tires in this size carry the 3PMSF severe snow marking.
A Best wet grip
3 tires in this size hold the top EU wet grip rating, class A. The highest scoring on Tire Reviews:
- Pirelli P Zero R Summer 8.5
- Pirelli P Zero Winter Winter 7.6
- Pirelli P Zero Corsa Summer 6.6
72dB Quietest tires
The quietest 335/30 R21 tires are labelled at 72 dB external noise:
- Pirelli P Zero Winter 2 Winter 9.8
- Pirelli P Zero Trofeo RS Summer 9.3
- Pirelli P Zero Corsa Summer 6.6
- Goodyear Eagle F1 SuperSport RS Summer 5.9
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 335/30 R21 mean?
A 335/30 R21 tire is 335 mm wide, its sidewall is 30% of that width (101 mm) tall, and it fits a 21 inch wheel. That gives an overall diameter of roughly 734 mm.
| Section width | 335 mm |
|---|---|
| Sidewall height | 101 mm |
| Rim diameter | 21" (533 mm) |
| Overall diameter | ≈ 734 mm |
| Circumference | ≈ 2,307 mm |
| Revolutions per km | ≈ 433 |
| Revolutions per mile | ≈ 698 |
Also written as
335/30R21 335/30 ZR21 335-30-21 335 30 21
Figures are calculated from the nominal size. A loaded, rolling tire runs a few percent smaller, and true widths vary slightly between makes.
Drive on 335/30 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.