Re: perhaps it's not the bearings... (archive)

dp,
It is more of a grinding sound. And when the bearings go on our cars, or the starting to in the case that I think it might be, they are hard to detect by your mentioned test. However, you may be right...I think I am not going to worry aobut it for now. The Euro rotors may indeed be causing the sound, i.e. as they get heated up and flex around the expand enough to touch the caliper mounting bracket in turns.
-Bob

typically failed bearings wouldn't squeal, they'd make more of a grinding sound. a quick way to check is grab the top of the tire and rock it side to side (in and out). if there is a 'clunk' when you do that then the bearing is likely bad, if not it might be ok.

you mentioned that you have euro 2-piece rotors - that could possibly cause the squealing sound in slow turns (i'm not familiar with the exact design of these parts, but i do know that the floating rotors on one of my bikes make a nasty squealing/grinding sound at full steering lock at low speeds). maybe try applying the brakes lightly when you hear the sound and see if it goes away?

just some guesses here. good luck!

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