Originally Posted by
Leebo
A couple of more things to check. Hub tight? Wheel secure with quick release? Disc brake mounting holes flush and clear of paint? As said before, maybe some wheel flex. Spokes tensioned properly?
I agree with you about checking those things but as monconlonx said it's typical of BB5's. They also screech, wail, creak and moan until they mellow out. The problem is that hard, prolonged braking when the brakes are new is the cause of these noises. Guess what I did when my bike was new.