Originally Posted by
Retro Grouch
For it to be caused by brake wear wouldn't it have to be on the brake track? The brake track is clearly indicated by the wear indicator groove.
Plus, the OP says, and the photo evidence of the brake track confirms that the rim is very new. Obviously brake track wear is not a factor, nor are caliper brakes implicated in any way.
But some people will seize on anything to advance an agenda. Got a rim issue? Get disc brakes. Girlfriend broke up with you?, must be hose lousy caliper brakes.