UK tyre basics
Tyre Speed Rating Guide UK
Find what the speed letter on your tyre sidewall means, and why it matters for safety and UK insurance.
UK speed rating chart
| Letter | Max speed (km/h) | Max speed (mph) | Commonly fitted to |
|---|---|---|---|
| Q | 160 km/h | 99 mph | Winter and 4x4 tyres |
| S | 180 km/h | 112 mph | Family cars |
| T | 190 km/h | 118 mph | Older family cars and vans |
| H | 210 km/h | 130 mph | Family cars and SUVs |
| V | 240 km/h | 149 mph | Family and premium cars |
| W | 270 km/h | 168 mph | Premium and performance cars |
| Y | 300 km/h | 186 mph | Performance and supercars |
Why the speed rating matters in the UK
UK national speed limits are well below most tyre speed ratings, but the rating reflects more than top speed — higher-rated tyres usually have stiffer construction, better stability and stronger wet performance.
Replacement tyres should always meet or exceed the original speed rating. A lower-rated tyre may not handle motorway speeds safely, and it can affect MOT compliance and insurance cover.
Frequently asked questions
Quick answers about UK tyre fitment, MOT rules and seasonal options.
Can I fit a tyre with a lower speed rating?
No. Replacement tyres should meet or exceed the speed rating on the original equipment. A lower rating may invalidate insurance and reduce safety.
Can I fit a tyre with a higher speed rating?
Yes. A higher speed rating is allowed and can offer better stability at speed. Stay within the lowest-rated tyre on the car for actual driving.
Where do I find my speed rating?
On the tyre sidewall, after the load index. For example, 205/55 R16 91V — the V is the speed rating.
Are winter tyres allowed at a lower speed rating?
Yes — winter tyres can be fitted at a lower speed rating than the original equipment, provided you observe the maximum speed and your insurance is informed.
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.