Rubbish, stay away from them.
Less than 10,000 km out of these and they already need replacing. Also the soft compound picks up stones easily and flings them up which will destroy the paint on anything that you're towing (discovered the hard way)
225/40 R21 Tires
Everything we know about the 225/40 R21 tire size: 1 owner reviews covering 5,500 miles of driving, and EU label data for the tires you can actually buy in it.
- 1owner reviews
- 5,500 milescovered on them
What does 225/40 R21 mean?
A 225/40 R21 tire is 225 mm wide, its sidewall is 40% of that width (90 mm) tall, and it fits a 21 inch wheel. That gives an overall diameter of roughly 713 mm.
| Section width | 225 mm |
|---|---|
| Sidewall height | 90 mm |
| Rim diameter | 21" (533 mm) |
| Overall diameter | ≈ 713 mm |
| Circumference | ≈ 2,241 mm |
| Revolutions per km | ≈ 446 |
| Revolutions per mile | ≈ 718 |
Also written as
225/40R21 225/40 ZR21 225-40-21 225 40 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 225/40 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 225/40 R21 tires
The most recent owner reviews fitted in this size, in their own words.
Drive on 225/40 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.