• Is your chainring circular? I've always found Wippermann 1Z1 to be among the quietest chains, but too much chain tension will make anything noisy. If your chainring isn't round, maybe you have excessive chain tension at some point in the revolution.

    FWIW, my stealth bike has TA ring, Phil or EAI silver sprocket and 1Z1 and no resonating cavities (skinny steel tubes, old fashioned metal wheels), it's completely silent. My race bike (hollow carbon disc wheel, big thin walled carbon tubes, Wippermann 1R8) sounds like a bag of spanners.

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