Originally Posted by seamuis

effectively, yes. It’s common wisdom that sprockets should be changed when replacing a chain. Chainrings usually aren’t considered, until they start showing overtly obvious signs of wear. This is because chainrings will wear considerably slower than your sprockets, for what should be an obvious reason.

if your sprocket isnt very old, and you’re not comfortable spending money replacing it because you don’t feel it’s warranted, the best you can do is just keep riding. Eventually the new chain might better mesh with the sprocket and become quieter and smoother. Of course this highlights the obvious reason why chains and sprockets should be replaced together.

of course some chains may just give you trouble. Did you replace it with the exact same brand/type of chain? It could be slight differences in the manufacture and tolerances of the chain. People who run flip/flop with a fixed and a freewheel often run into this situation. My several year old white industries freewheel is silky smooth and quiet compared to my few month old fixed sprocket, with the same chain, despite the chainline being identical and the sprockets being the same tooth count. If o were to put a new chain on, I’m willing to bet the reverse would then be true.