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Thread: Knocking sound?

  1. #1
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    Knocking sound?

    Hello!
    So when I start riding uphillish and stand up to crank... I noticed a knocking sound (sort of like the sound someone makes when they 'click' their mouth)? coming from the crank/BB area.

    has anyone else had this experience? any suggestions as to whats wrong?

  2. #2
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    loose bb cups
    loose crank arms
    loose chainring (doubtful)

    take it to your lbs and have them fix it for you.

  3. #3
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    Quote Originally Posted by gt35built View Post
    loose bb cups
    loose crank arms
    loose chainring (doubtful)

    take it to your lbs and have them fix it for you.
    Agreed. My crank arm comes loose often and makes a clicking sound when rotating. Lube up and tighten everything, you should be fine.

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    Bastard of Reality Scrodzilla's Avatar
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    dsh
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    I bet it was the chainring bolts.

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    Bastard of Reality Scrodzilla's Avatar
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    Or the flux capacitor. Low-grade plutonium is known to cause occasional knocks.

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    Quote Originally Posted by Scrodzilla View Post
    Or the flux capacitor. Low-grade plutonium is known to cause occasional knocks.
    Ya i use leaded plutonium to get rid of the knocking

  8. #8
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    I had the exact same problem also. This probably won't help but last week, I jumped a curb because of a closed sidewalk and it went away.

  9. #9
    pro in someone's theory prooftheory's Avatar
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    Curb hopping is always the best way to fix a flux capacitor.

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