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  1. #1
    ILL...INI uofiblue's Avatar
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    Strange noise at the bottom of my stroke

    Hey guys. I know this is a shot in the dark being as you can't see the bike or hear the noise, but I'm hearing a weird scraping noise at the bottom of my stroke if I'm putting any pressure on the pedal at all. I cannot duplicate the noise without being on the bike and pedaling so it's tough to try and see where it's coming from. I'm also a novice when it comes to bike repair, so I don't know what sound parts give as they fail. Any possibilities you have for what may be causing this would be greatly appreciated.

  2. #2
    I ain't no newbie redirekib's Avatar
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    That subject line leaves you wide open but I'm not going to touch it.......

  3. #3
    ILL...INI uofiblue's Avatar
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    Yeah, as I hit the button to post it i read the title again and thought the same thing to myself. Oh well.

  4. #4
    Member iwritegraffiti's Avatar
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    I had a pretty similar sounding problem awhile ago. I eventually figured out that it was my chain, which had stretched out. Obviously, a new chain solved my problem.

    Of course, I don't know that this is your problem....... But, it's would be an easy/inexpensive pklace to start.

  5. #5
    Part-time epistemologist invisiblehand's Avatar
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    Quote Originally Posted by uofiblue View Post
    Hey guys. I know this is a shot in the dark being as you can't see the bike or hear the noise, but I'm hearing a weird scraping noise at the bottom of my stroke if I'm putting any pressure on the pedal at all. I cannot duplicate the noise without being on the bike and pedaling so it's tough to try and see where it's coming from. I'm also a novice when it comes to bike repair, so I don't know what sound parts give as they fail. Any possibilities you have for what may be causing this would be greatly appreciated.
    I would try tightening a few things first:

    (1) pedals
    (2) chainrings
    (3) bottom bracket

    Does the sound change when you mash versus spin?

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