Run flat tyres are not able to repaired because of the way they are designed and manufactured differently from conventional tyres in order to provide the run flat capability. Because run flat tyres are reinforced in order to provide a degree of stability when punctured, this makes it much more difficult to assess any damage that has occurred from both the puncture and any driving that has taken place while the tyre was deflated. This means that even if a repair were carried out the strength of the tyre could be compromised which could result in a dangerous failure at speed.