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Runout On Rear Sprocket

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Noticed my 44 tooth rear sprocket has about a 3-4mm runout near the teeth. Otherwise its still in fine shape. I am trying to save money these days. I can press it back to within 1mm runout, or I can leave it, or (if I really have to) buy a new one. Recommendations?

I have seen them beaten back into shape with a hammer after a bashing on the rocks to finish a trial. I honestly doubt 3-4 mm makes much difference as the chain moves along.

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