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  1. #1
    Junior Member
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    Why does my bottem bracket creak and squak in the summer, but not winter

    Hello... any ideas why this happens?

  2. #2
    loser
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    why do my brakes squeak in the morning but not in the evening?

  3. #3
    cab horn
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    Quote Originally Posted by Fireman Phil View Post
    Hello... any ideas why this happens?
    Because the grease has run out.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  4. #4
    Senior Member Chuckie J.'s Avatar
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    My drivetrain makes very little noise in the winter.... because I wear a hat and it covers my ears.

  5. #5
    Space Dust
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    Thermal expansion rate differences between metals.

  6. #6
    Wrench User
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    ^ That actually is a pretty good explanation. Maybe, if it's really hot and you're using a thinner lube, it could be viscosity differences?

  7. #7
    Senior Member
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    In the summer the grease that is in there is getting thinner from the higher ambient temps so it could allow
    the parts to rub a bit more, and the thermal expansion could make the parts fit a bit looser. Do not forget
    grease is nothing more than a carrier matrix to carry oil and after a certain time the oil gets depleated and
    basically have the base and not much oil especially when it gets hot and the oil gets freed from the base
    to lubricate some goes to lower spots that are not contact points, when it cools it kind of sucks the oil back
    in a capillary action!!

  8. #8
    cab horn
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    Quote Originally Posted by bmalmquist View Post
    ^ That actually is a pretty good explanation. Maybe, if it's really hot and you're using a thinner lube, it could be viscosity differences?
    Not really. I don't think the OP is riding from winter to summer everyday.

    Also conveniently forgetting the fact that noise usually does not come from where it sounds like it's coming from. The prevalency of threads like "Help my bike makes ____ noise" should tip you off.

    http://sheldonbrown.com/creaks.html

    Actually it's a waste of time to even speculate given the amount of information that is presented, which is jack all.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  9. #9
    Wrench User
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    Quote Originally Posted by operator View Post
    Not really. I don't think the OP is riding from winter to summer everyday.

    Also conveniently forgetting the fact that noise usually does not come from where it sounds like it's coming from. The prevalency of threads like "Help my bike makes ____ noise" should tip you off.

    http://sheldonbrown.com/creaks.html

    Actually it's a waste of time to even speculate given the amount of information that is presented, which is jack all.
    Dang. Might as well shut this forum down . . .

  10. #10
    Senior Member SweetLou's Avatar
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    I think it is a riddle.
    Answer: Because you don't ride it in the winter.

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