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are you sure you have a puncture and not a cracked alloy.might be worth checking.
here is a little info
Official advice on run flat tyre repair
etyres takes advice direct from tyre manufacturers in respect of whether to repair run flat tyres. Currently the following tyre manufacturers acknowledge that, in line with British Standard BS AU 159 and subject to certain other conditions, their run flat tyres can be repaired:
Bridgestone
Dunlop
Firestone
Goodyear
Michelin
The following tyre manufacturers advise that their run flat tyres should not be repaired:
Avon
Continental
Hankook
Pirelli
Yokohama
Repairing Bridgestone run flat tyres
Advice from Bridgestone states that with certain types of punctures in the tread area the Bridgestone Run Flat Technology (RFT) tyres may be repaired, subject to certain conditions. These conditions include what speed the tyres were driven on after the puncture.
Repairing Continental run flat tyres
Advice from Continental states that their Self Supporting Runflat (SSR) run flat tyres should not be repaired or reused after they have been damaged or run on flat.
Repairing Dunlop run flat tyres
Advice from Dunlop states that their Dunlop Self Supporting Technology (DSST) run flat tyres are repairable provided that the puncture is within the repairable area as defined by British Standard BS AU 159.
Repairing Goodyear run flat tyres
Advice from Goodyear states that if a puncture occurs on one of their Extended Mobility Technology (EMT) run flat tyres, it can be repaired provided that the puncture is within the repairable area as defined by British Standard BS AU 159.
Repairing Michelin run flat tyres
Michelin state that their Zero Pressure (ZP) run flat tyres can be repaired once but the puncture repair must be completed in line with British Standard BS AU 159.
Repairing Pirelli run flat tyres
Official advice from Pirelli states that all run flat tyres should be changed and not repaired after a loss of pressure. Damaged Pirelli run flat tyres or those that have experienced a loss of pressure, should be replaced immediately.
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