A dealership alignment emproved the car somewhat, but although it still did not match up to my other two cars, or my previous Mazda ownership experience. At 20k+ mileage 1 tire sucked a nail, I went a local tire dealer for an evaluation/repair, and it was deemed destroyed, but replaceable for $311.00, but none were in stock. This gave me the opportunity to check internet reviews of this tire. The most respected customer reviews rate this tire at no higher than 1-1/2 stars. All other tires are rated no lower than 3. I plan to put a set of Continentals on the car and see if there's any true Mazda fun in it.
155/55 R18 Tires
Everything we know about the 155/55 R18 tire size: 1 owner reviews covering 20,000 miles of driving, and EU label data for the tires you can actually buy in it.
- 1owner reviews
- 20,000 milescovered on them
What does 155/55 R18 mean?
A 155/55 R18 tire is 155 mm wide, its sidewall is 55% of that width (85 mm) tall, and it fits a 18 inch wheel. That gives an overall diameter of roughly 628 mm.
| Section width | 155 mm |
|---|---|
| Sidewall height | 85 mm |
| Rim diameter | 18" (457 mm) |
| Overall diameter | ≈ 628 mm |
| Circumference | ≈ 1,972 mm |
| Revolutions per km | ≈ 507 |
| Revolutions per mile | ≈ 816 |
Also written as
155/55R18 155/55 ZR18 155-55-18 155 55 18
Figures are calculated from the nominal size. A loaded, rolling tire runs a few percent smaller, and true widths vary slightly between makes.
What drivers say about their 155/55 R18 tires
The most recent owner reviews fitted in this size, in their own words.
A dealership alignment emproved the car somewhat, but although it still did not match up to my other two cars, or my previous Mazda ownership experience. At 20k+ mileage 1 tire sucked a nail, I went a local tire dealer for an evaluation/repair, and it was deemed destroyed, but replaceable for $311.00, but none were in stock. This gave me the opportunity to check internet reviews of this tire. The most respected customer reviews rate this tire at no higher than 1-1/2 stars. All other tires are rated no lower than 3. I plan to put a set of Continentals on the car and see if there's any true Mazda fun in it.
Drive on 155/55 R18 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.

