Originally Posted by
cyccommute
I don’t know what you are doing but I can’t recall ever replaced a chainwheel due to chain wear. Even if you went an extra 1/16” of an inch over, you shouldn’t have to replace chainring. I’d agree that you might end up having to replace the cassette but not the chainring.
I get 3000 to 3500 miles per chain and 3 to 4 chains to each cassette.
I don't keep records of how many miles per chain but I estimate about 5K miles. I always change the cassette when I change the chain. Like ecyccomute says, the chainwheels don't see any appreciable wear from the chain. When I can ride like Peter Sagan I will change more often.
