“Installed with brand new 1/2 link chain and it's noisy as F.
Checked chain alignment and tried a different new full link chain and same issue.
Swapped sprockets and quiet as a mouse.
No idea why, but must be something to do with the tooth design.
$80 in the bin.
Save your dollars and just get a better made sprocket.
Never had an issue with Colony or Odyssey sprockets.”