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235/50 R21 Tyres

Everything we know about the 235/50 R21 tyre size: 2 owner reviews covering 13,200 miles of driving, and EU label data for the tyres you can actually buy in it.

  • 2owner reviews
  • 13,200 milescovered on them
  • 30tyres made in this size
235/50 R21 To scale, mm
Ø 768 235 118 21" 118

235/50 R21 EU tyre label data

EU label values are declared for each individual size, so the figures here are exact for 235/50 R21 rather than a range across a model. 27 tyres carry label data in this size. The most common load index is 101 (up to 825 kg per tyre). Speed ratings on offer: W (270 km/h), V (240 km/h), H (210 km/h), T (190 km/h), R (170 km/h). 16 tyres in this size carry the 3PMSF severe snow marking.

A Best wet grip

5 tyres in this size hold the top EU wet grip rating, class A. The highest scoring on Tyre Reviews:

A Lowest rolling resistance

The most fuel efficient choice: 1 tyres in this size reach rolling resistance class A. The highest scoring on Tyre Reviews:

68dB Quietest tyres

The quietest 235/50 R21 tyres are labelled at 68 dB external noise:

Label values come from the EU EPREL database and apply to the EU market versions of each tyre. 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 235/50 R21 mean?

A 235/50 R21 tyre is 235 mm wide, its sidewall is 50% of that width (118 mm) tall, and it fits a 21 inch wheel. That gives an overall diameter of roughly 768 mm.

235/50 R21 nominal dimensions
Section width235 mm
Sidewall height118 mm
Rim diameter21" (533 mm)
Overall diameter≈ 768 mm
Circumference≈ 2,414 mm
Revolutions per km≈ 414
Revolutions per mile≈ 667

Also written as

235/50R21 235/50 ZR21 235-50-21 235 50 21

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

Comparing two sizes? Use the tyre size calculator →

What cars use 235/50 R21 tyres?

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

Every tyre reviewed in 235/50 R21

The complete record, including discontinued tyres and tyres with too few reviews to rank, ordered by the amount of evidence.

All tyres reviewed in 235/50 R21
Tyre Season Owner rating Reviews Distance reviewed
Michelin Pilot Sport 4 SUV Summer 89% 2 13,200 miles

Reviews only cover part of the market: 30 tyres are made in 235/50 R21. Browse every 235/50 R21 tyre →

What drivers say about their 235/50 R21 tyres

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

100%
Michelin Pilot Sport 4 SUV 235/50 R21 Lexus RX450H+ 200 miles April 2, 2026
My Lexus RX 450H+ came with Dunlop SP Sport Max fitted from new and the fronts have lasted a little over 18,000 miles getting to the wear indicator, the rears having around 5mm tread left but one of the rears had a bubble on the inner sidewall hence, the decision to change all 4 with Michelin offering £100 cash back making them good value compared to Bridgestone and Dunlop. Not many other brands offering this Tyre size from stock.

The Dunlop's never felt sure footed in the wet, they weren't bad but neither were they good however, in colder wet conditions the front would lose grip quite easily and living in the UK, these are very often the conditions we find ourselves in.

The Pilot Sport 4 SUV tyres immediately sound a little quieter which is a nice surprise but the main advantage being the front end has more authority, turn in is a little sharper and there is a smidge better feel through the steering wheel.

Wet grip is vastly improved over the Dunlop's, accelerating from rest in damp conditions results in front end traction that the Dunlop couldn't handle unless being easier with throttle input.

In all, while I can't yet provide any feedback on longevity, I am much happier with the Michelin's.
77%
Michelin Pilot Sport 4 SUV 235/50 R21 Lexus RX500h 13,000 miles December 26, 2025
It’s a good sport tyres given by Lexus from the factory, as there aren’t much options in this tyre specs anyway. Grip wise, it should have enough grip to be confident in lots of corners, though there were times where I lost traction shortly when flooring the car real hard on sealed road. Any speeds more than 100km/h will bring noises into the cabin (given ugly back roads in Australia), but otherwise a comfortable ride most of the time. On windy roads, plenty of traction but the car was a boat, can’t do much spirited driving anyway. Looking to try Touring tyres next such as Advan dB or Geolandar X CV before coming back to PS4 again.

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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.

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