if the chainline is out a little (are the chain ring/sprocket teeth at one particular side of the chain?) you get a gritty grrr sound some times. you get more noise if you go too tight on the chain tension too.
@mattmadegood started
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if the chainline is out a little (are the chain ring/sprocket teeth at one particular side of the chain?) you get a gritty grrr sound some times. you get more noise if you go too tight on the chain tension too.