Menu

135/45 R18 Tires

Everything we know about the 135/45 R18 tire size: 1 owner reviews covering 4,000 miles of driving, and EU label data for the tires you can actually buy in it.

  • 1owner reviews
  • 4,000 milescovered on them
135/45 R18 To scale, mm
Ø 579 135 61 18" 61

What does 135/45 R18 mean?

A 135/45 R18 tire is 135 mm wide, its sidewall is 45% of that width (61 mm) tall, and it fits a 18 inch wheel. That gives an overall diameter of roughly 579 mm.

Section width135 mm
Sidewall height61 mm
Rim diameter18" (457 mm)
Overall diameter≈ 579 mm
Circumference≈ 1,818 mm
Revolutions per km≈ 550
Revolutions per mile≈ 885

Also written as

135/45R18 135/45 ZR18 135-45-18 135 45 18

Figures are calculated from the nominal size. A loaded, rolling tire runs a few percent smaller, and true widths vary slightly between makes.

Comparing two sizes? Use the tire size calculator →

What cars use 135/45 R18 tires?

The cars most often running this size in our owner reviews. Each links to the best rated tires for that exact car.

Skoda Superb MK3 (2015 Present) 1 reviews in this size

What drivers say about their 135/45 R18 tires

The most recent owner reviews fitted in this size, in their own words.

84%
Michelin Primacy 4 135/45 R18 Skoda Superb MK3 (2015 Present) 4,000 miles March 18, 2025
This is an update of my previous experience with the Michelin Primacy 4+ on my Skoda Superb series 3.

I have reported on numerous times to a Skoda dealer that the car judgers at low speakers when on turning the steering wheel and the wheels can bounce when load applied.

Dealer reports no issues with the car.

Most probably found the problem : my cars drive mode is always on ( traction control ) I go through the drive menu and turn the traction control off and the problem appears to go away.

These tires perform very well and certainly would purchase again but although a summer tire they are not really suited to Southern European temperatures as a permanent fitment due to tire compounds.

Drive on 135/45 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.

Review Your Tires

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.

Our review ethics →

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.

Rate your tires

My tires

Saved in this browser on this site. No account needed. Clearing browser data removes your choices.

Vehicle and size

Check the size, load and speed ratings on your vehicle. Saving a size does not confirm fitment.

Saved tires

Save tires from a tire page, test or comparison to keep them here.

Select 2–8 saved tires. Ranked comparisons require at least two shared tests.