Don't know yet if there is any damage. I agree with that, the cog is tightening and leaving the lock ring loose. hopefully there is no damage to the hub. It is a flip/flop hub. Would you agree that i should not be at fault? i did not install the cog and lock ring. they are both brand new out of the box on brand new rims. i have rode with them on maybe 3-4 times if that.