I changed out my drive sprocket and the whole rear wheel, including driven sprocket last week and now have a noisy chain. I am going to readjust wheel today to try to get rid of it. Both sprockets look fine. Mike, any idea of when you put the last chain on? Anyway, I am going to by a spare this week to install or bring with me.  DID 530VX3. What I have forgotten is how many links. If I had to guess I would say 107. I just don’t want to have to shorten it while on the roas. 18