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front brake rotor runout/noise


RHill

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I've noticed an intermittent noise coming from my front end. First thought was warped rotors or bad bearing. I tested the runout on both rotors and I'm well within the service range. One was +/-2.5 thousandths and the other was dead nuts on. The sound went away the moment the calipers were pulled, so its not the bearings.

I think its more of an annoyance than anything else at this point. Havent felt any pulsing of be front brake or anything like that. I didnt check what type of pads were on the bike, maybe that is the culprit.

Anyone deal with this before?

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The sound was a split second squeal on every rotation, only noticeable at really slow speeds while coasting or when spinning the wheel while on a stand.

I'll pull the pads and clean everything up and see how it works out.

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After a few more rides I can say the sounds gone. I cant tell you if it was changing the front wheel, going over the rotors with 600 grit, or just dumb luck. I'd lean toward going taking the glaze off the rotors with some 600+ grit sandpaper since its the easiest to do....hell you dont even need to take calipers off.

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