- 24/7 mobile service
- 15-30 min typical arrival
- All London
Run-Flat Tyres: Benefits, Limitations and When to Replace Them
Quick answer Run-flat tyres have reinforced sidewalls that let you keep driving for a short distance after a puncture. They are convenient, but they have limits. If a run-flat has lost pressure, has been driven on while flat, or has sidewall damage, it usually needs replacing, not repairing. Need run flat tyre replacement in London? We come to you, 24/7.
What are run-flat tyres?
Run-flat tyres (RFTs) are built with stiffer, reinforced sidewalls. If the tyre loses air, the sidewall can carry the weight of the car for a limited distance, so you do not need to stop immediately and change a wheel at the roadside. Many cars come with them as standard, especially BMW, MINI and Mercedes models, and many have no spare wheel at all.
How do you know if your tyres are run-flat?
Look at the sidewall. Run-flat tyres often carry a marking like one of these, depending on the brand:
- RFT
- ROF
- ZP
- SSR
- DSST
- RUN FLAT
If you are not sure, send us your registration or tyre size and we will check for you.
Run-flat tyres: the good and the not-so-good
You can keep moving after a punctureYou can usually get to a safe place instead of changing a wheel on a busy road.
Safer in a sudden pressure lossThe tyre holds its shape, which helps you stay in control.
No spare wheel neededThat frees up boot space and reduces weight.
Peace of mind at night or in bad weatherWhen changing a wheel is not safe or pleasant.
Limited distance and speedA typical guide is around 50 mph for about 50 miles, but this varies by tyre and car. Check your handbook or tyre maker's advice.
Harder to repairMany tyre makers advise replacing a run-flat that has lost pressure or been driven on while flat, because the sidewall may be damaged inside.
Firmer ride, more road noiseCompared with a standard tyre. They also usually cost more.
You will not always feel a punctureThe car keeps driving normally, which is why a working TPMS matters. See what the tyre pressure warning light means.
What is your situation telling you?
| What happened | What it usually means | What to do |
|---|---|---|
| TPMS light is on, tyre looks normal | Pressure is dropping (run-flats hide it well) | Slow down, stop safely, check the tyre and call us |
| You drove on it after pressure loss | The inner sidewall may be damaged | Replacement is usually needed |
| Nail or screw in the tread | Possible repair, or replacement | Get it inspected, do not guess |
| Cut, bulge or crack in the sidewall | The tyre is unsafe | Replace it, do not drive on it |
| Tread at or near 1.6mm | Legal limit reached | Replace the tyre |
| Vibration or uneven wear | Balance, pressure or wear problem | Get it checked, see wheel balancing |
When should you replace a run-flat tyre?
Quick check: does your tyre need replacing?
Tick everything that applies to your tyre.
Tick any that apply. If even one does, get the tyre inspected by a professional. Most of these mean replacement.
What to do if a run-flat tyre loses pressure
- Do not panic and slow down
Avoid hard braking and sharp turns.
- Keep to a safe, moderate speed
A commonly advised limit is around 50 mph. Follow your handbook.
- Go only as far as needed
Reach a safe place. Do not stop on a live motorway lane.
- Do not keep driving "just a bit more"
Every extra mile can damage the tyre further.
- Call us
We can inspect it where you are and tell you if it needs replacing.
Can you swap run-flats for normal tyres?
On some cars, yes, but it is not always a good idea. Your car may not have a spare wheel or jack, the suspension and TPMS are set up for run-flats, and handling can change. It is best to ask before you decide. Also, do not mix run-flat and standard tyres on the same axle. Fit matching tyres, and check your handbook for what your car allows.
Why choose mobile run flat tyre replacement in London?
Run-flats are often fitted to premium cars that are hard to move once the tyre has failed. With FlatFix Tyre, we come to you.
- 24/7 service, day or night
- Typical arrival 15-30 minutes across London
- At your home, workplace or a safe roadside spot
- We inspect the tyre and tell you honestly whether it can be saved
- If it needs replacing, we supply and fit it: Tyre Supply & Fit
- Replacement is subject to tyre availability and suitability for your vehicle. Send your registration and tyre size so we can confirm the right tyre.
For BMW, MINI and Mercedes owners:
Based in Harrow? See mobile tyre fitting in Harrow, or check all areas we cover. Learn more about our run-flat tyre service.
Frequently asked questions
Can I drive on a run-flat tyre after a puncture?
Only a short, careful distance at a reduced speed, to somewhere safe. Check your handbook for the limits. Do not carry on for long.
Can a run-flat tyre be repaired?
Often it is better to replace it. Many tyre makers advise against repairing a run-flat, especially if it has been driven on while flat. We inspect the tyre first and tell you what is safe.
Do run-flat tyres need TPMS?
Yes, in most cases. Because you may not feel a puncture, a working tyre pressure monitoring system is how the car warns you. Read: what TPMS is.
How can I tell if my tyres are run-flat?
Check the sidewall for markings like RFT, ROF, ZP, SSR or DSST, or "Run Flat". Your handbook will also say.
How long do run-flat tyres last?
It depends on the car, driving style, tyre pressure and road conditions. Some wear faster because of their stiffer build. Check tread and pressures regularly.
Can you replace run-flat tyres at my home or work in London?
Yes, subject to tyre availability and suitability for your vehicle. Send us your registration and tyre size and we will confirm. See our run-flat tyre service.
How much does run flat tyre replacement cost?
It depends on the tyre size, brand and your vehicle. Send us your registration and we will quote you before any work starts.
Run-flat tyre problem right now?
Do not drive further than you need to. Call or WhatsApp FlatFix Tyre with your location and what your tyre looks like, and we will come to you.
