I pulled my heaset apart the other day to wipe down and regrease everything as part of a tune-up and noticed that the crown race (first item that slides onto the fork and rides against the lower sealed bearing) has a crack in it, almost as if the diameter of the steering tube is too large for it's inside diameter and was 'stretched' into place and thus became cracked with use.
The headset is a Cane Creek IS Headset and is installed on an '05 Trek 2300.
Now the question that i have is whether or not this is something in need of replacement since, it's still seating well against the ramped bottom side of the actual bearing (which is sealed and still has solid support all around from that lower race except for the 1/32" crack). I regreased everything, wiped down all the sealed bearings and relubed all the contact points before reinstalling and readjusting it all.
Some experienced/professional advice would be really appreciated.
This is the exploded view of the headset, and the ring with the crack is #10. Right at the bottom.