Random squealing noises from new bike
05-12-21, 07:05 PM
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Random squealing noises from new bike
One think i noticed in my new evo 105 disc that it makes some squeaking noise randomly which generally comes when you apply break (kind of metal rubbing sound) but here it comes even if i move the bike or sometimes just turn the handle while standing....I dont know what this is but worried if this is some problem. For your reference, I am attaching one audio file. I recorded it on Iphone just to give you idea what kind of sound i am talking about. Please ignore the background people talking sound. If you hear this, you will notice that sound 4 times....please let me know what you think...Sound
05-12-21, 07:10 PM
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Faint brake rub does that. Some adjustments can address it, but not likely a safety concern.
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05-12-21, 08:02 PM
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Not surprising. The bearings in the wheel don't hold it precisely in a plane, and just a fraction of a millimeter nudge can make the pad contact the rotor if it's already razor close. I'd let the brakes bed in for a hundred miles or so.
05-13-21, 05:55 AM
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Likely the front hub bearing pre-load is too loose, permitting the hub shell to move side-to-side on its axle. The result is that the brake rotor is translating ever so slightly out-of-plane and rubbing on one (or both) of the caliper pads.
Find a local mechanic who can adjust the front hub bearings for you. It's a simple job. If it's a new bike and if it came from a shop, then have them do it.
EDIT: ^ but not the same mechanic who set up the bike originally. He's likely inexperienced and allowed that bike to go to a customer without testing the bearings first under side loads.
Find a local mechanic who can adjust the front hub bearings for you. It's a simple job. If it's a new bike and if it came from a shop, then have them do it.
EDIT: ^ but not the same mechanic who set up the bike originally. He's likely inexperienced and allowed that bike to go to a customer without testing the bearings first under side loads.
