Turns out, the tyres have weak lateral sidewalls and as such handling on my car suffers a lot (and I like a sporty drive). A lot of fine dust rubber from the rear tyres ends up on the car's paint and glues on to it - something I didn't expect would happen and washing this dust from the paint is very difficult to do. Tyres are also a bit noisy. Decent tyres but wouldn't buy again.
230/45 R18 Tyres
Everything we know about the 230/45 R18 tyre size: 1 owner reviews covering 5,000 miles of driving, and EU label data for the tyres you can actually buy in it.
- 1owner reviews
- 5,000 milescovered on them
What does 230/45 R18 mean?
A 230/45 R18 tyre is 230 mm wide, its sidewall is 45% of that width (104 mm) tall, and it fits a 18 inch wheel. That gives an overall diameter of roughly 664 mm.
| Section width | 230 mm |
|---|---|
| Sidewall height | 104 mm |
| Rim diameter | 18" (457 mm) |
| Overall diameter | ≈ 664 mm |
| Circumference | ≈ 2,087 mm |
| Revolutions per km | ≈ 479 |
| Revolutions per mile | ≈ 771 |
Also written as
230/45R18 230/45 ZR18 230-45-18 230 45 18
Figures are calculated from the nominal size. A loaded, rolling tyre runs a few percent smaller, and true widths vary slightly between makes.
What drivers say about their 230/45 R18 tyres
The most recent owner reviews fitted in this size, in their own words.
Turns out, the tyres have weak lateral sidewalls and as such handling on my car suffers a lot (and I like a sporty drive). A lot of fine dust rubber from the rear tyres ends up on the car's paint and glues on to it - something I didn't expect would happen and washing this dust from the paint is very difficult to do. Tyres are also a bit noisy. Decent tyres but wouldn't buy again.
Drive on 230/45 R18 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.

