Tuesday, September 9, 2014

Run Flats vs. Regular Tyres.


Picture this.. You're on the side of the road, your tyre is blown out. You have 2 options, either call for roadside assistance or you can roll up your sleeves and change the tyre yourself. What if there was a 3rd option? Well there is, and this is where 'run flats' come into their own.

'Run flats' give you the ability to continue to drive your vehicle for an additional 80km's* following a puncture or blowout. This gives the driver the ability to exit the road safely and drive (a considerable distance) to the nearest repair shop.

Even though changing a tyre is an important skill, the idea of 'run flat' tyres sounds pretty handy. The added benefit of losing the weight of a spare tire and tools could help with fuel efficiency too.

There are two main types of 'run flat' tyres: Self-Supporting, and Auxiliary Supported. Self-Supporting tyres have stiffer and tougher rubber, which can temporarily carry the weight of the vehicle under lower tyre pressure. Auxiliary supported tyres don’t have stiffer and tougher rubber, but are attached to a special rim which has a steel support ring that is attached to the wheel and can support the weight of the vehicle.

So whats the catch? You probably guess it  - price. On average 'run flats' are one third more expensive then regular tyres, and can be dramatically more then that.

Performance. As you can imagine driving on a tyre with next to no pressure will affect your vehicles performance and handling. It has been documented some users have expressed concern whereas others felt the car responded fine, considering it had no pressure.

If changing a tyre is an uncomfortable or intimidating process, then 'run flats' are ideal for you. You will be paying for convenience. If you're on a budget or you can't justify the effort vs cost then your standard tyre is more then adequate for the job.

*Distances can vary - always check with the manufacturer for the specifics of the tyre you are using.


Check below for all the technical details.

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