Run-flat tyres are designed so a puncture does not leave you stranded at the roadside. They behave differently to standard tyres, and it helps to know how.
How they work
A run-flat tyre has strengthened sidewalls that can support the weight of the car for a limited distance even with no air pressure. Some designs use a supporting ring inside the tyre.
How far can you drive
The usual guidance is up to about 50 miles at no more than 50 mph after pressure loss, but it varies by tyre and vehicle. Check your handbook and drive gently.
Pressure monitoring
Because a run-flat does not look or feel flat, cars fitted with them normally have a tyre pressure monitoring system that warns you on the dashboard. Don't ignore the warning.
Repair or replace
Many manufacturers advise against repairing run-flats, especially after driving on them flat, because the sidewall can be damaged internally without any visible sign.
Replacing them
Run-flats need suitable fitting equipment. If your car came with them, check the handbook before switching to standard tyres.
Common questions
Can I put normal tyres on a run-flat car?
Often yes, but it can affect handling and the monitoring system, and you would lose the run-flat ability. Check the manufacturer's advice.
Do run-flats ride harder?
Their stiffer sidewalls can give a firmer ride, which is a common complaint, though newer designs have improved.
Do you fit run-flat tyres?
Yes. We supply and fit them across London with the correct equipment.
How do I know if I have run-flats?
Look for RFT, ROF, DSST or a similar marking on the sidewall, or check the handbook.