I do not recommend these for high horsepower cars or at least where forced induction is involved, they fry up quite easily compared to the pirelli P-zero’s I had on before them.
In spirited driving Occassions they hold corners very well without breaking traction or under steering, a 25 series tire is never really going to be comfortable so it’s not fair to pass that judgement but considering the profile they are not overly noisey.
They need to be a bit softer to suit my car. Standing starts will fry tires easily and even low speed pulls will light up the tires.
305/25 R20 Tires
Everything we know about the 305/25 R20 tire size: 2 owner reviews covering 4,500 miles of driving, and EU label data for the tires you can actually buy in it.
- 2owner reviews
- 4,500 milescovered on them
- 29tires made in this size
305/25 R20 EU tire label data
EU label values are declared for each individual size, so the figures here are exact for 305/25 R20 rather than a range across a model. 10 tires carry label data in this size. The most common load index is 97 (up to 730 kg per tire). Speed ratings on offer: (Y) (301 km/h), Y (300 km/h).
A Best wet grip
8 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
- Michelin Pilot Sport 4 S Summer 9.4
- Continental Sport Contact 6 Summer 9.3
- Falken Azenis FK510 Summer 8.5
- Dunlop SportMaxx RT Summer 8.2
- Yokohama Advan Sport V105 Summer 7.7
71dB Quietest tires
The quietest 305/25 R20 tires are labelled at 71 dB external noise:
- Pirelli P Zero Summer 8.8
- Hankook Ventus S1 evo Summer 8.5
- Toyo Proxes Sport Summer 7.4
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 305/25 R20 mean?
A 305/25 R20 tire is 305 mm wide, its sidewall is 25% of that width (76 mm) tall, and it fits a 20 inch wheel. That gives an overall diameter of roughly 661 mm.
| Section width | 305 mm |
|---|---|
| Sidewall height | 76 mm |
| Rim diameter | 20" (508 mm) |
| Overall diameter | ≈ 661 mm |
| Circumference | ≈ 2,075 mm |
| Revolutions per km | ≈ 482 |
| Revolutions per mile | ≈ 776 |
Also written as
305/25R20 305/25 ZR20 305-25-20 305 25 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 305/25 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 305/25 R20 tires
The most recent owner reviews fitted in this size, in their own words.
Replaced the original Pirellis with these about 6 months ago, noticed less grip in the dry but slide quite nicely.
Not had it out in the wet yet, meant to be quite good though.
Not had it out in the wet yet, meant to be quite good though.
Drive on 305/25 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.