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  1. #1
    night rider
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    Squeak when shifting

    My road bike squeaks when I shift to bigger cogs with the rear derailleur. For some weird reason, I don't seem to hear the squeak until the 2-3 mile mark and then it progresses to every downshift eventually. Doesn't seem to matter what ring in front I'm in.

    I thought it might be my cleats... I know that doesn't make sense but it sounds just like the squeaking from a Look cleat that needs to be lubed or changed. I made the change and the squeaking hasn't stopped or changed.

    The bike is relatively new. Shimano 105 10-speed. About 1200 miles on it. I don't ride this bike in the rain per se, but it's seen a few drizzles and I ride past midnight often when there is lots of fog around here. Is it possible that the squeak is coming from the cables?

    Thanks much for any help.

    Erik

  2. #2
    Senior Member
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    Do the 105 rear-derailleur pulleys use bushings or bearings?

    A little cleaning and greasing of the bushings might kill the squeak.

  3. #3
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    just oil everything. I believe most 105 derailleurs use a sealed bearing on the lower tension pulley and their ceramic bushing on the G-pulley. Squeak is probably either the deralleur return spring or possibly your chain.
    Professional mechanic for 9 years

  4. #4
    night rider
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    Thanks very much for the suggestions. I went at it with some oil and will give it the day to seep into any nooks and crannies. Then I'll take her for a spin this evening to see if that works.

    FWIW I have always kept my chain well lubed but not much more.

  5. #5
    Senior Member
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    Quote Originally Posted by the sasquach View Post
    just oil everything.
    This didn't work for me until I disassembled and cleaned and oiled the bushing.

    Quote Originally Posted by wiscoerik View Post
    FWIW I have always kept my chain well lubed but not much more.
    It appears you only get the noise when shifting. If so, I don't think it's going to be the chain.

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