Originally Posted by BA_XR6
Had to get a new tyre today for my BA XR6 due to a cut in the tread that caused the tyre (left rear) to deflate. Apart from the pain of replacing a near-new tyre, I really don't undestand how this happened. The tyre guy reckoned I'd run over something like a kerb, but I certainly don't recall doing this.
The cut/split was about 7-8 cm long and had gone through the belts. It was on about a 45° angle to the tread. Any ideas? - could this possibly be a manufacturing defect? The tyre was a 235/45-17 SP3000A, 8,500 kms, running at 34 psi.
There has been problems with the SP3000A in the past, but without seeing your "cut/split" it would be hard to guess.
The fact that it went through the steel belts on your tyre could mean that something cut or fractured it.
I had my four tyres replaced under warranty at about 10500km.
All four tyres had split inner walls or cracks across the tread.
I can send you some pics of my tyres if you need.
Here is a link to a previous thread regarding this issue:-
Any luck with warranty on faulty dunlop sp300a