Say goodbye to awkward roadside tyre changes − run flat tyres are designed to keep working even after suffering a puncture. These tyres not only help improve driver safety, but they also allow you to continue driving for 50 miles at 50mph to get home or to a fitting centre.
If you’re using run flat tyres on your vehicle and get a puncture, the tyre is protected and resists the effects of deflation. This means that your vehicle will be able to be driven at reduced speeds to get to your next destination safely.
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For more handy information on run flat tyres and why you should buy them from Tyre Shopper, read below.
A vehicle is usually supported by the air in its tyres, and once there is a puncture, they collapse. The unique construction of run flat tyres reduces the potential dangers of a tyre blow-out. They have tough rubber inserts which temporarily hold up the weight of the vehicle after a puncture. This allows drivers additional time – dependent on driving speed, vehicle load and driving conditions – to get to their nearest tyre-fitter.
The materials used to manufacture run flat tyres are similar to conventional tyres, and so wear rates should be comparable. Keeping the correct air pressure in your tyres is the best way to ensure a longer life.
Before fitting these onto your car, ensure that you check the safety implications of these tyres and match the correct size, speed rating and load index.
Run flat tyres are slightly more rigid in comparison to conventional tyres, and the service centre may have to use a tyre pressure monitoring system to ensure smooth running once the tyres are fitted onto your car.
Some cars need only run flat tyres, as the suspension set-up of the vehicle differs from a car that requires conventional tyres. It’s a good idea to check your car manual before switching original equipment manufacturer (OEM) tyres to run flats – or vice versa.
If you are retrofitting run flat tyres to a conventional suspension car, make sure your service centre checks the wheel alignment, braking efficiency and other parameters before you take the vehicle out on the road.
Before purchasing any new tyres, always consult the vehicle or tyre manufacturer to check which vehicles are suitable for the fitting of run flat tyres. These tyres may only be fitted to vehicles equipped with a tyre pressuring monitoring system (TPMS).
The fitting of conventional tyres to vehicles originally fitted with run flat tyres will remove the vehicle's run flat capability. They will also have no spare tyre. This could potentially leave the driver immobile in the case of a deflation and could compromise handling of their vehicle.
It is therefore recommended to consult with the vehicle manufacturer or tyre manufacturer before replacing a run flat tyre with a conventional tyre on such vehicles.
The tread rubber compound used in run flat tyres is generally the same – or similar to – that used in conventional tyres. Therefore, tyre wear rates between the two tyre types should be similar. It is important to note that the best tyre performance is achieved by maintaining correct inflation pressures for the load and vehicle use.
In short, they can’t, but there is a good reason for this. Due to their reinforced design, secondary damage caused by a puncture can be very difficult to ascertain, meaning that any potential harm to the tyre may be masked by its fortified strength. Due to this, we strongly advise having your run flat tyres replaced rather than repaired.
Once your run flat tyre sustains a puncture, you’ll usually be able to drive approximately 50 miles at 30-50 mph – ample time to get to the nearest garage. The exact range, however, depends on numerous variables such as your vehicle’s load, weather conditions and driving speed.