Quote:
Originally Posted by Nath
My theory is that when a chain is looked after, the front sprocket will wear quicker than the chain, and once it deteriorates to a certain level it accelerates the wear on on the chain. The next time I'm looking to get high mileage out of a chain I'm going to replace the front sprocket roughly half way through the predicted life of the chain. Front sprockets are cheap. Food for thought?
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I think that is a reverse reasoning! As far as I know it is the chain that wears out the sprockets, not the other way around. Due to the (wear) stretching of the chain, the fit over the teeth is gone after a certain amount of stretch. Then you get what looks like a saw blade sprockets. If you want to last longer with chains and sprockets, buy two chains and one set sprockets and change the chain every 10K/15K with the other one. In reality this is not practical thought because it is not so easy to press the shackels and I don't want to bring it to the shop every time.
So infact this is actually rubbish info  but technically it is correct. 
sorry to go a bit of topic...
Cheers,
Noel
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