120/90 R18 Tires
Everything we know about the 120/90 R18 tire size: 1 owner reviews covering 1,500 miles of driving, and EU label data for the tires you can actually buy in it.
- 1owner reviews
- 1,500 milescovered on them
- 13tires made in this size
What does 120/90 R18 mean?
A 120/90 R18 tire is 120 mm wide, its sidewall is 90% of that width (108 mm) tall, and it fits a 18 inch wheel. That gives an overall diameter of roughly 673 mm.
| Section width | 120 mm |
|---|---|
| Sidewall height | 108 mm |
| Rim diameter | 18" (457 mm) |
| Overall diameter | ≈ 673 mm |
| Circumference | ≈ 2,115 mm |
| Revolutions per km | ≈ 473 |
| Revolutions per mile | ≈ 761 |
Also written as
120/90R18 120/90 ZR18 120-90-18 120 90 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 cars use 120/90 R18 tires?
The cars most often running this size in our owner reviews. Each links to the best rated tires for that exact car.
Drive on 120/90 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.