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Problems with rear wheel. Bead/Rock Noise

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Problems with rear wheel. Bead/Rock Noise

Old 02-13-18, 08:25 PM
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Problems with rear wheel. Bead/Rock Noise

I just received my Merax Finiss bike from Amazon today, and as I got it out and began to rotate the tires, there is a bead/rock noise in the back tire that sounds like they fall to the bottom as I rotate the tire. I have no idea what it could be as this is my first bicycle I've had since I was young.
My friend ordered the same bike and his does not do this. I'm not sure what to do or if I should just return it. Thank you in advance for any info you may have!!
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Old 02-14-18, 07:04 AM
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If the wheels are carbon, it could be fragments of carbon composite from a shoddy manufacturing process. With either carbon or alloy it could be a lost spoke nipple that fell into the rim and was left there by a lazy wheel builder/wheel building machine technician. (Ask me how I know. ) In either case taking off the tire and tube and “working” it will allow you to get the offending scrap out. You have to coax the material down to the valve stem hole. Unless someone else will pay the return shipping, you are probably better off trying to fix it yourself or having a local shop try...even at some cost.

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Old 02-15-18, 01:48 PM
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Tire with tube? Might be a scrap of rubber that got into the tube during it's making. Sounds get amplified pretty well in a hollow tire, so a little piece of rubber rolling in there can sound pretty big.

I've had similar noises too. That's what I assumed they were/are. Never bothered to look, never had a problem from it.
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Old 02-15-18, 02:13 PM
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It is highly unlikely that whatever is making that noise is going to do any harm at all except to your peace of mind. The least cost/work approach would be to do your best to ignore it until you have the tire off anyway. Then you can quickly see if the sound is from the rim vs the tire. If it the rim, you may be able to work whatever is in there to the valve hole or you may have to remove some of the rim tape to see what is going on. If you need to remove the rim tape, it is best to have a new roll on hand because you may not be able to re-use the old.

I had a nipple rattling in a rim for a couple of years once because I knew from experience getting nipples out of those rims was a challenge.

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