Good thread, I've been contemplating this very subject.

When I last had my wheel off (after my puncture) I noticed that it wouldn't have much more in it and when I took it into 'West London Cowboys' much later I flagged it as something that would need checking. They said that it's will need doing soon but it's got a bit more life in it (which probably means it was fcuked at least 4,000 miles ago!).

This is still the original one and I'm nearly 14,000 miles on the clock! What would the symptoms of a knackered one be? Will it pull to one side on hard throttle? Make a noise? Sprocket wobble? Odd rash? Cotton mouth? Blurred vision?

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