240/45 R17 Tyres
Everything we know about the 240/45 R17 tyre size: 4 owner reviews covering 54,000 miles of driving, and EU label data for the tyres you can actually buy in it.
- 4owner reviews
- 54,000 milescovered on them
- 6tyres made in this size
What does 240/45 R17 mean?
A 240/45 R17 tyre is 240 mm wide, its sidewall is 45% of that width (108 mm) tall, and it fits a 17 inch wheel. That gives an overall diameter of roughly 648 mm.
| Section width | 240 mm |
|---|---|
| Sidewall height | 108 mm |
| Rim diameter | 17" (432 mm) |
| Overall diameter | ≈ 648 mm |
| Circumference | ≈ 2,035 mm |
| Revolutions per km | ≈ 491 |
| Revolutions per mile | ≈ 791 |
Also written as
240/45R17 240/45 ZR17 240-45-17 240 45 17
Figures are calculated from the nominal size. A loaded, rolling tyre runs a few percent smaller, and true widths vary slightly between makes.
What cars use 240/45 R17 tyres?
The cars most often running this size in our owner reviews. Each links to the best rated tyres for that exact car.
What drivers say about their 240/45 R17 tyres
The most recent owner reviews fitted in this size, in their own words.
I have covered about 20,000 miles - in all conditions in many countries through Europe - including a stormy drive over the Col du Galibier at 2,642m(!) with them and I can confirm that they are excellent in all conditions. Surefooted, predictable and stable at speed. They are also comfortable, though perhaps they are a little noiser than the previous Continental Premium Contact MO spec that I had, but not to a significant degree.
My purchase was based on the tests from AutoBild and Autocar, which were on 17". These tyres are good value too and four tyres cost the same as the equivalent Michelin Pilot Sport 4s.
Drive on 240/45 R17 tyres?
Review your tyres 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 tyre, the size and the distance covered, and are checked by hand before publication. Test results come from independent published tyre tests indexed by size, and label values from the EU EPREL database.
About the TR Score
The Tyre Reviews Score rates each tyre 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 Tyre Reviews test is run by Jonathan Benson, who has been testing tyres independently since 2007.

