Nothing, it just wore right through. There had been a cut in the tyre there from a big piece of glass some 2,000 miles earlier, I think that hastened the wear at that point.

Funniest thing in this thread is the bloke gobbing off right at the top about how it'll never work and it'll cause me all sorts of problems, even though I already made it very clear that it DID work, and not only that it actually outperformed my wildest expectations... So now I've got a new tyre on the front, and retired the front to the back, all ready to get another ludicrous mileage p******e free on cheap tyres.