Bulge in tyre sidewall

[monthefish]

Bulges in tyre sidewalls - how do they occur?
(I assume they can't just appear whilst sitting in the spare wheel well in a car boot?)

If you bought an approved-used car from a main dealer, and 6 moths later (upon vieweing spare tyre for the first time) discovered that the spare had a bulge in the sidewall, are you within your rights to expect them to replace the tyre on the spare?

Over to you...

(Car is a 57 plate BTW)

[littlebasher]

Cant see them going for that

Who's to say you didn't clip the curb, swap the spare and then try it on with the dealer

[johnpeat]

Bulges occur because the reinforcing of the tyre is damaged - causing the rubber/compound to distort...

As it's been 6 months you'll have to prove the fault was there at the time of sale (inside 6 months they'd have to prove it wasn't).

Over to you...

[chunkol]

Usual thing is pay for replacement, but have tyre sent back to manufacturer. If they agree there is a fault, they will refund. Worked with Pirelli tyres anyway.

[Negative Creep]

Doesn't answer your question but I assume you have completely deflated it just in case?

[Gizmo!]

Usually because one of the reinforcing bands inside the tyre has gone letting the rubber stretch under pressure.

Odd on a spare though.

[monthefish]

littlebasher said:

Cant see them going for that

Who's to say you didn't clip the curb, swap the spare and then try it on with the dealer

Nothing I suppose, except for the fact it's the truth.

The wheel is immaculate but the tyre is clearly used (not by us).

Putting aside whether they believe me or not (pretend that I have spotted this on collecting the car at the dealership for the first time) - would it be acceptable for them to provide a spare in that condition?