Tyre size 275/30 R20
Find 275/30 R20 Tyres
Free guidance for 275/30 R20 tyres. Performance saloons and supercars. Always confirm fitment on your tyre sidewall.
Tyre Size Checker
Enter a UK tyre size such as 205/55 R16 91V to decode the width, profile, rim, load index and speed rating.
Find your tyre size on the sidewall, the driver's door frame, fuel flap or vehicle handbook.
- This tyre size may be incomplete. A full tyre size often looks like 205/55 R16 91V. Check your tyre sidewall for the load index and speed rating.
What 275/30 R20 means
275 is the section width in millimetres. 30 is the profile (sidewall height as a percentage of the width). R is radial construction. 20 is the wheel rim diameter in inches.
A full tyre size also includes a load index and speed rating, e.g. 275/30 R20 91V. The load index maps to a maximum weight per tyre, and the speed rating maps to a maximum speed at full load.
Where 275/30 R20 is commonly fitted
Performance saloons and supercars.
Even when a tyre size is common, the specific tyre that's right for your vehicle depends on the load index, speed rating, and sometimes whether the original equipment is run-flat or EV-rated. Always confirm with your tyre sidewall, vehicle handbook or a qualified UK tyre fitter before fitting.
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You can find this on your tyre sidewall.
This tyre size may be incomplete. A full tyre size often looks like 205/55 R16 91V. Check your tyre sidewall for the load index and speed rating.
Step 1 of 7 — Start
What to check before fitting
- Confirm the size on your tyre sidewall
- Match or exceed the original load index and speed rating
- Check the EU tyre label for wet grip, fuel and noise
- Pick the right type — summer, all-season or winter
- Fit as a full set or at least a matched pair on the same axle
Frequently asked questions
Quick answers about UK tyre fitment, MOT rules and seasonal options.
Can 275/30 R20 tyres be repaired after a puncture?
Standard 275/30 R20 tyres can usually be repaired if the puncture is in the central tread area, smaller than 6mm and not on the sidewall. Run-flat versions of the same size often cannot be repaired.
275/30 R20 has a very low profile — is it run-flat?
Some, but not all, 275/30 R20 fitments are run-flat. Run-flat versions show "RFT", "ROF", "ZP", "EMT" or similar markings on the sidewall. Stick with run-flats only if your car was supplied with them and has tyre pressure monitoring.
Are 20-inch tyres harder to live with on UK roads?
20-inch and larger tyres tend to ride firmer, transmit more pothole impact and wear faster than 17"-18" sizes. On a UK B-road, premium-brand tyres in this size are often worth the extra cost.
What does 275/30 R20 mean?
275/30 R20 reads as: 275mm tread width, sidewall height 30% of width (≈ 83mm sidewall), and a 20-inch rim diameter. A complete size includes a load index and speed rating, e.g. 275/30 R20 91V.
Where do I check 275/30 R20 is the right tyre for my car?
Compare 275/30 R20 to: (1) the size already on your sidewall, (2) the placard inside your driver's door, (3) your vehicle handbook, and ideally (4) a tyre fitter familiar with your model. Don't fit a size that doesn't match all of these.
Tyre sizes related to 275/30 R20
Same rim, similar width or profile — common alternatives UK drivers compare with 275/30 R20.
Tyre Finder UK provides general tyre guidance only. We do not guarantee tyre fitment, local stock, prices or fitting availability. Always confirm your tyre size, load rating, speed rating and vehicle requirements using your current tyre sidewall, vehicle handbook, manufacturer guidance or a qualified tyre fitter before fitting.