Can a puncture in a run flat tyre be repaired?
Filed under tyres - Asked by James Dundon (Dublin) - Wed, 12 May 2010 16:18
The run flat tyre is designed to allow you to drive home safely even if there is a loss of inflation, but a consequence of that would be that you would dispose of the tyre after that and get a new one. The reason for this is that the sidewall is very thick and it is difficult to examine this for damage. Here is what Bridgestone have to say about it on their Run-Flat website:
"It depends on how far and at what speed the automobile was driven after the puncture was sustained. Repair is possible only if deemed so by the tyre sales store. Preconditions include a puncture of less than 6mm for both side-reinforced type and support-ring type Run-Flat tyres, plus minimal damage to the support ring in case of the latter. However, it is strongly recommended that the tyre is replaced as its durability will have been weakened after being repaired."
A Continental Tyres spokesperson told us, "you should not repair or put back in service self supporting runflat (SSR) tyres that have been damaged or run flat. This is because it is impossible to know what internal damage has been caused to a tyre that has been run on flat."
Obviously this could end up being expensive if you have to get a new tyre every time you get a puncture, but the idea is that if you do have a puncture you can drive home safely and don't have to be left stranded at the side of the road.Answered by: changagoidem Adviser