Originally Posted by
ppg677
I've had some chain suck issues on my 11-speed athena group. This is where the crank would "suck" the chain. It caused paint damage on the chainstay of my newly painted bike
I think that could be more of a chain compatibility issue, did you try a different chain to fix the problem? Do you suspect it might be chainring ramp design if there are any on the model Athena you have?