Run flat tyres are designed to help you get to safety in the event of a loss of pressure. Run flat tyres are designed to get you to safety in the event of a puncture. Specially reinforced sidewalls allow you to continue driving at a limited speed and for a limited period, which hold the weight of the car when the air pressure drops. Run flat tyres are specified for a maximum distance and a maximum speed – usually only around 50 miles at 50 mph, but you should refer to your vehicle’s handbook for this information. Run flat technology helps prevent wheel damage in the event of a puncture. It does this by using tough inserts that can temporarily carry the weight of your vehicle when air escapes from the tyre. Run flat technology has developed significantly in recent years, partly as car makers aim to reduce vehicle weight by removing the heavy spare tyre from the boot. BMW and MINI are among the growing number of car makers fitting run flats. Browse the best run flats for BMWs by using our tyre search tool above.