Joined: Oct 2003
Posts: 839
Likes: 1
From: philly
Bikes: trek 520 & 736, DeRosa Professional, Fuji Professional, Raleigh International 3-speed, Saronni (any info people?), Humber 3-speed, Raleigh Sports, Carlton Grand Prix coming soon!
it's not unusual, you may notice on dark anodized rims with brake wear will often have a light-dark pattern that corresponds with the spoke holes.