WTF is this noise? Could it be a bad wheel bearing at 1500 miles!?
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Sounds like a slight high frequency vibration of the brake rotor induced by brake pad/rotor contact. Nothing to worry about.
No way could it be a bearing. The short distance you rolled the bike in the video would translate to very little bearing rotation, and certainly not enough rotation to cause that noise.
No way could it be a bearing. The short distance you rolled the bike in the video would translate to very little bearing rotation, and certainly not enough rotation to cause that noise.
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It's really nothing to worry about. Get rolling 2 or 3 miles an hour and it probably goes away... Right?
It's simply that when the brake pad contacts the rotor at such a low rate of speed it induces a slight chatter of the pad. The chatter of the pad translates to the rotor and causes the rotor to vibrate at just the right frequency to create the sound your hearing . It will have no effect on brake function in normal operation.
I hate to say it's "normal", that word seems to be sacrilegous around here, but nevertheless it is quite common.
You could try some anti-sqeal compound between the pad and caliper piston, or check that the caliper piston is not binding, or check the rotor for runout, but really, it's just not worth the effort in my honest opinion.
It's simply that when the brake pad contacts the rotor at such a low rate of speed it induces a slight chatter of the pad. The chatter of the pad translates to the rotor and causes the rotor to vibrate at just the right frequency to create the sound your hearing . It will have no effect on brake function in normal operation.
I hate to say it's "normal", that word seems to be sacrilegous around here, but nevertheless it is quite common.
You could try some anti-sqeal compound between the pad and caliper piston, or check that the caliper piston is not binding, or check the rotor for runout, but really, it's just not worth the effort in my honest opinion.
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