Run flat tyres are increasingly common on new vehicles, particularly from manufacturers like BMW, MINI, Mercedes, and Audi. They're designed to keep you moving after a puncture, removing the need for an immediate roadside tyre change. But they're not for everyone, and understanding how they work will help you decide whether they're the right choice for your car.
How Do Run Flat Tyres Work?
Standard tyres rely entirely on air pressure to support the weight of the vehicle. When pressure is lost due to a puncture, the tyre collapses almost immediately. Run flat tyres feature reinforced sidewalls that can support the vehicle's weight even when the tyre is completely deflated. This allows you to continue driving at reduced speeds — typically up to 50mph — for a limited distance, usually around 50 miles, giving you time to reach a garage or a safe stopping point.
The Advantages of Run Flat Tyres
The main benefit is safety and convenience. A puncture at motorway speed is a potentially dangerous event, and run flats reduce the risk of a sudden loss of control. They also eliminate the need to change a tyre by the roadside, which can be hazardous, and many vehicles fitted with run flats don't carry a spare wheel, freeing up boot space and reducing vehicle weight.
The Drawbacks to Consider
Run flat tyres have a stiffer ride due to their reinforced sidewalls, which can affect comfort — particularly noticeable on urban roads with potholes and speed bumps. They also cost more to replace than standard tyres. Critically, a run flat tyre that has been driven on while flat cannot be repaired and must be replaced, even if the puncture itself would have been repairable in a conventional tyre. Additionally, run flat tyres can only be used on vehicles with a Tyre Pressure Monitoring System (TPMS), as you won't always feel the loss of pressure.
Enzo Mobile Tyres stocks run flat tyres for a wide range of vehicles and can fit them at your location across Nottingham and North London. If you're unsure whether to switch from run flats to standard tyres or vice versa, our technicians can advise you on the best option for your car.
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