Originally Posted by
fietsbob
If you replace a new chain on a worn sprocket , it will wear quicker to fit the worn teeth,
, but as FB says ,
This is exactly opposite to what I said.
"Chains wear sprockets, but sprockets don't wear chains".
While an old chain will rapidly age a sprocket, I don't believe the opposite is true. If you think about standard practice in the bike world, replacing multiple chains over the life of a single cassette, you'll see that it's consistent with my theory.
In 45+ years I have yet to hear a single explanation of how an older sprocket would increase the rate of chain wear. (for bicycles)