[Yeltzer]

Hi guys

Have got a bit of a bulge in my drivers' side front tyre (18" Bridgestone run flats). Its about the size of a two pound coins and sticks out about the thickness of a pound coin.

I take it this tyre now needs replacing asap? (annoying as there is still a reasonable amount of tread left).

If I take it to a stealer (or any garage in fact) will they replace just that one or will they insist on replacing the other front one too (due to uneven treads etc - not really sure, my tyre knowledge is next to zero!).

Any advice/info appreciated.

[willhollin]

I have a pair of part worn RFTs in my garage if you are interested.

[Dr Dave]

Originally Posted by willhollin

I have a pair of old dogs in my garage if you are interested.

Will no need to bring your dog(s) into this thread

[buckethead]

should only be the 1 tyre

4 x 4 with low profiles need both on the same axle changed

i think could be wrong

[M330Touring]

Take it straight into a tyre place and get it replaced, you are risking not only your life but any one else that you may hit, when that lets go! If the other tyre on the axle is within tolerance it wont need replacing. It's all to do with the electronics that manages the traction control

[beemerbird]

Originally Posted by Yeltzer

Hi guys

Have got a bit of a bulge in my drivers' side front tyre (18" Bridgestone run flats). Its about the size of a two pound coins and sticks out about the thickness of a pound coin.

I take it this tyre now needs replacing asap? (annoying as there is still a reasonable amount of tread left).

If I take it to a stealer (or any garage in fact) will they replace just that one or will they insist on replacing the other front one too (due to uneven treads etc - not really sure, my tyre knowledge is next to zero!).

Any advice/info appreciated.

I had this exact same thing happen to my near side front 18" Bridgestone Potenza RFT on my 335d. Stuck out like a sore thumb basically, right on the side wall of the tyre. Took it to the tyre place and I wanted it replacing anyhow, but they immediately said it had to be replaced. Fortunately I had tyre insurance which I got FOC as part of the deal when buying the car so tyre cost me n'owt.

As an example, Porsche recommend no more than 30% tyre wear differential on the same axle on their higher performance range.

[chris330D]

The others are right, if there is a bulge it will need replacing. Normally this means the tyre has hit a pot hole or something hard to make it deform and the alignment may be out as well.

[willhollin]

Originally Posted by willhollin

I have a pair of part worn RFTs in my garage if you are interested.

I'll just burn them then.

[grey man]

Went to tyre place near office today to replace my rear tyres (original Bridgestone 17" runflats - done 25,000 miles) which were near but not at the legal limit. When taking the first off the fitter pointed out that it had cracks/splits in the centre of the tread 1/4" wide down to the steel bands.

I have always thought these Bridgestones poor, but that was positively dangerous. The other was OK, though also worn to about 1 mil from legal limit

Replaced by (runflat) Michelins. I put these on the front a few months ago and have found them a huge improvement on the Bridgestones.