It was a trick question. Prior to changing out this cog (but with a new chain), it was kind of quiet, except when I was just starting out or climbing a hill.... then it sounded like I was dragging a chain over the chain stay.
With a new cog is silky smooth.
First time I changed the chain after somewhere between 5000 and 10,000 miles... I guess I was due.
__________________
I stop for people / whose right of way I honor / but not for no one.
Originally Posted by
bragi 
"However, it's never a good idea to overgeneralize."