• I just replaced my KMC 510 with a mid range DID, and I am now having trouble sneaking up on unsuspecting noddies.

    Could chainring wear like this...

    And a ding on my cog like this...

    be the source of my woes? Or is the DID just noisy.

    My chain line is measured straight. I adjusted it very slightly (phil BB).

    I don't listen to Slayer, and prefer the sound of my tyres on the road.

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