Everything we know about the 275/45 R21 tire size: 10 owner reviews covering 149,192 miles of driving, and EU label data for the tires you can actually buy in it.
| Season | Owners' pick | Owner rating | Latest test winner |
|---|---|---|---|
| All Season | Pirelli Scorpion Verde All Season 4.9 | 76% from 3 reviews | - |
Owner picks are the highest weighted owner score in 275/45 R21; test winners come from the most recent independent test conducted in this size. The full evidence is below.
Rated only by drivers running this size. Each tire needs at least 3 reviews in 275/45 R21 to be ranked; the order weights a tire's score by how many reviews back it, so one glowing review cannot top a table.
The highest rated All Season tire in 275/45 R21 is the Pirelli Scorpion Verde All Season - 76% from 3 owner reviews in this size.
| # | Tire | Owner rating | Reviews | Distance reviewed | TR Score |
|---|---|---|---|---|---|
| 1 |
Pirelli Scorpion Verde All Season
|
76% | 3 | 48,532 miles | 4.9 |
Want test data as well as owner opinion? Best All Season Tires → Test winner: Goodyear Vector All Season 4
TR Score is the tire's overall Tire Reviews rating out of 10, built from independent test results and every owner review of that tire - not just the reviews from this car. The owner rating column is this car only.
EU label values are declared for each individual size, so the figures here are exact for 275/45 R21 rather than a range across a model. 216 tires carry label data in this size. The most common load index is 110 (up to 1,060 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), S (180 km/h), Q (160 km/h). 92 tires in this size carry the 3PMSF severe snow marking.
73 tires in this size hold the top EU wet grip rating, class A. The highest scoring on Tire Reviews:
The most fuel efficient choice: 12 tires in this size reach rolling resistance class A. The highest scoring on Tire Reviews:
The quietest 275/45 R21 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.
A 275/45 R21 tire is 275 mm wide, its sidewall is 45% of that width (124 mm) tall, and it fits a 21 inch wheel. That gives an overall diameter of roughly 781 mm.
| Section width | 275 mm |
|---|---|
| Sidewall height | 124 mm |
| Rim diameter | 21" (533 mm) |
| Overall diameter | ≈ 781 mm |
| Circumference | ≈ 2,453 mm |
| Revolutions per km | ≈ 408 |
| Revolutions per mile | ≈ 656 |
275/45R21 275/45 ZR21 275-45-21 275 45 21
Figures are calculated from the nominal size. A loaded, rolling tire runs a few percent smaller, and true widths vary slightly between makes.
The cars most often running this size in our owner reviews. Each links to the best rated tires for that exact car.
The complete record, including discontinued tires and tires with too few reviews to rank, ordered by the amount of evidence. A further 7 tires have a single review each; they count toward the totals but are not listed.
| Tire | Season | Owner rating | Reviews | Distance reviewed |
|---|---|---|---|---|
| Pirelli Scorpion Verde All Season | All Season | 76% | 3 | 48,532 miles |
Reviews only cover part of the market: 262 tires are made in 275/45 R21. Browse every 275/45 R21 tire →
The most recent owner reviews fitted in this size, in their own words.
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.
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.
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.
Every test published as a Tire Reviews test is run by Jonathan Benson, who has been testing tires independently since 2007.