Tyre Information : Runflat Tyres
Run flat technology allows your car to keep on running after a puncture or blow out, even when the tyre is completely deflated. Self supporting run flat tyres are designed to provide a run on period following deflation. The range of the tyre when running on flat is dependent on the condition of use (i.e. vehicle load, vehicle speed and driving conditions). However, you should be able to keep ongoing for a minimum of 50 miles at a constant speed of no more than 30mph.
This is made possible due to the tyre's reinforced sidewalls. The highly resilient rubber inserts support the weight of the car even when the air pressure, which normally does this job, is gone.
Replacement tyre fitting - Always consult the vehicle handbook or tyre manufacturer's guidelines regarding which vehicles are suitable for fitment of run flat tyres. These tyres may only be fitted to vehicles equipped with a tyre pressuring monitoring system (TPMS).
Fitting of conventional tyres to vehicles originally fitted with run flat tyres will remove the vehicle's run flat capability and will leave you with no spare tyre. This could potentially leave you immobile in case of deflation and it is therefore recommended to consult your vehicle or tyre manufacturer before replacing a run flat tyre with a conventional tyre.