Drove 2200 miles in the Swiss Alps and down to Italy then back home to the Uk in my BMW Z4,did the Stelvio pass and the tires performed admirably.. they are still new so I can comment for them when the get older or worn but they were good on this road trip
235/30 R18 Tires
Everything we know about the 235/30 R18 tire size: 4 owner reviews covering 40,000 miles of driving, and EU label data for the tires you can actually buy in it.
- 4owner reviews
- 40,000 milescovered on them
- 2tires made in this size
235/30 R18 EU tire label data
EU label values are declared for each individual size, so the figures here are exact for 235/30 R18 rather than a range across a model. 1 tires carry label data in this size. The most common load index is 85 (up to 515 kg per tire). Speed ratings on offer: Y (300 km/h).
A Best wet grip
1 tires in this size hold the top EU wet grip rating, class A. The highest scoring on Tire Reviews:
- Toyo Proxes Sport Summer 7.4
71dB Quietest tires
The quietest 235/30 R18 tires are labelled at 71 dB external noise:
- Toyo Proxes Sport Summer 7.4
Label values come from the EU EPREL database and apply to the EU market versions of each tire. Wet grip and rolling resistance run from class A (best) to E; noise is the measured drive-by figure. A good label is a floor, not a verdict - the tests and owner ratings above tell you far more.
What does 235/30 R18 mean?
A 235/30 R18 tire is 235 mm wide, its sidewall is 30% of that width (71 mm) tall, and it fits a 18 inch wheel. That gives an overall diameter of roughly 598 mm.
| Section width | 235 mm |
|---|---|
| Sidewall height | 71 mm |
| Rim diameter | 18" (457 mm) |
| Overall diameter | ≈ 598 mm |
| Circumference | ≈ 1,879 mm |
| Revolutions per km | ≈ 532 |
| Revolutions per mile | ≈ 856 |
Also written as
235/30R18 235/30 ZR18 235-30-18 235 30 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 235/30 R18 tires?
The cars most often running this size in our owner reviews. Each links to the best rated tires for that exact car.
What drivers say about their 235/30 R18 tires
The most recent owner reviews fitted in this size, in their own words.
Had these on all four corners of my Volvo XC90 for 6 years so gone few a few sets. These have been great. They are a tad noisier than the scorpions but I can't hunk per £ they are much better. I've used General Grabbers and in my opinion the Accellera iota are better. I had 5 new tires fitted for £72 each corner. Bargain. As for the chap who said that he replied these after a week... You must have more money than sense!
These are great tires on the Volvo.
These are great tires on the Volvo.
Very pleased indeed, these replaced Contis and I wouldn't go back.
I had these on the fronts when I bought my Audi A4 in July 2011 (the rears were sporting Falken 452s).
Over the last 12,000 odd miles I've driven them, they have been quite good although they need changing now as they are almost illegal (they've given the previous driver and I around 20,000 miles). I intended to change them as soon as I got the car but they have never really let me down in the dry or wet albeit I don't drive like a nutter when the roads are wet anyway. They were hopeless on ice though but then again they are summer tires. The one thing I really hate about them are they spin like mad in the wet and cannot handle 170bhp at all. You have to be gentle when you launch off the traffic lights in the wet.
The downsides are comfort and noise. They are noisy on the motorway and although the S-Line has a harder suspension than the standard car, the tires do not help at all and the ride is almost hard as my previous Subaru Impreza STI.
Would I buy again? No. I am just about to get 4 Vredestein Ultrac Sessantas which will replace the Fullruns and Falkens.
Over the last 12,000 odd miles I've driven them, they have been quite good although they need changing now as they are almost illegal (they've given the previous driver and I around 20,000 miles). I intended to change them as soon as I got the car but they have never really let me down in the dry or wet albeit I don't drive like a nutter when the roads are wet anyway. They were hopeless on ice though but then again they are summer tires. The one thing I really hate about them are they spin like mad in the wet and cannot handle 170bhp at all. You have to be gentle when you launch off the traffic lights in the wet.
The downsides are comfort and noise. They are noisy on the motorway and although the S-Line has a harder suspension than the standard car, the tires do not help at all and the ride is almost hard as my previous Subaru Impreza STI.
Would I buy again? No. I am just about to get 4 Vredestein Ultrac Sessantas which will replace the Fullruns and Falkens.
Drive on 235/30 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.