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Scraping Sound When Braking

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Scraping Sound When Braking

Old 01-02-21, 01:42 PM
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alyske
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Question Scraping Sound When Braking

Since around Christmas Eve, my bike has been making this weird scraping sound when I brake, and my bike brakes very suddenly, as if I pounded on the brakes every time I stop. I don't hear anything when I am peddling, only when I am braking. I have put some oil on the chain and it is still doing the same thing. I was wondering if anyone here could help me out before I take it to a shop?

All help is appreciated!
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Old 01-02-21, 07:15 PM
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kingjason
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Disc or caliper?
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Old 01-03-21, 01:12 AM
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Have you looked at the pads? You may have picked up a small pebble.
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Old 01-03-21, 10:21 AM
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Are these coaster brakes? If so, check your rear hub....
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Old 01-03-21, 10:32 AM
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From your description of the symptoms, there's a good chance that the hub no longer contains sufficient grease. Fortunately, coaster hubs are pretty easy to work on. You might need to do a complete overhaul (see link below), or you might be able to get away with backing off the cone on one side and ladling in some dollops of thick grease.


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Old 01-10-21, 10:44 PM
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Originally Posted by alyske View Post
Since around Christmas Eve, my bike has been making this weird scraping sound when I brake, and my bike brakes very suddenly, as if I pounded on the brakes every time I stop. I don't hear anything when I am peddling, only when I am braking. I have put some oil on the chain and it is still doing the same thing. I was wondering if anyone here could help me out before I take it to a shop?

All help is appreciated!
If you get a chance post a picture of your rear hub and we'll be able to narrow down what the problem might be.
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Old 01-17-21, 10:45 PM
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From the description, it sounds like a coaster brake. alyske is this a single speed bike and do you pedal backwards to activate the brakes? If so you have a coaster brake.

I bike shop can rebuild the coaster brake for you or you can follow the video and do it yourself.
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