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Thread: Blur LT Squeak

  1. #1
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    Blur LT Squeak

    Okay -- I am going nuts here. My wife's Blur LT2 developed a very annoying intermittent squeak. It doesn't matter if she is pedaling or not, so that lead me to believe it was the suspension. But I am not sure now.

    Chasing this squeak, I have so far:

    1) Removed pivots, cleaned dirt, greased and reinstalled
    2) Rebuilt RP2 shock (new seals)
    3) Greased the head tube bearing shoulders
    4) Removed bottom bracket bearings, cleaned & greased threads, reinstalled.
    5) Took seatpost out, cleaned and reinstalled. (The seatpost is a Specialized Command Post II and the bike squeaks with the post up or down)
    6) Replaced her Terry Butterfly with a new Terry Butterfly seat.

    Still the squeak persists. And, to make matters more of a pain in the butt, it doesn't happen all the time. Most of the time, it seems to happen after she has been riding for a while (15 minutes+). Ugh. It is so annoying, she is starting to use her older bike instead.

    Does anyone have any other suggestions?

    Thanks,
    Joe

  2. #2
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    Possibly the DU bushings on your rear shock mounts.

  3. #3
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    I had the same problem with my Butcher and thought it was the bearings, but in fact it was the bushings in the linkage. I pulled everything out, cleaned, rotated them and all is well again.
    the going won't get good 'til I'm good and gone

  4. #4
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    Pivot bearings

    At my case it was first time the upper pivot small bearing (other pivots have bigger size). Another time it was lower pivot bearings. They don't last forever, just change new set of bearings. During 4 years I've changed everything twice. If you hear the sound while you are standing, then it is not saddle or post. If you hear it when on seat but not weight in pedals, then it is not BB, pedals or chainrings. --> Pivot bearings, hub bearings (not likely), shock pushings. At my case, I have heard excess sound from all of those at some point

    Ps. It can be also fracture in alu frame or swing

  5. #5
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    Chasing down squeaks and creaks can drive you to insanity. More places to look:

    rear derailleur mount - make sure it's tight
    hubs - I had a set of Azonic outlaws and the end cap/seal was the culprit
    break rub - Avid brakes?

    Good luck
    The cake is a lie.

  6. #6
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    another 2 places to look:
    pedals
    chainring bolts.

  7. #7
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    Thanks everyone -- gives me more places to look. :-)

    It is not making the noise now, of course. It waits until we are a few miles into the woods first -- I think the bike got jealous when she demo rode the new Niner Jet RDO.

  8. #8
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    Quote Originally Posted by HELLBELLY View Post
    I had the same problem with my Butcher and thought it was the bearings, but in fact it was the bushings in the linkage. I pulled everything out, cleaned, rotated them and all is well again.
    By Jove, I think you got it. The squeak has been banished! The bushing on the shock was cruddy. I cleaned it and the squeak has not returned.

    I have had FS bikes for a long time, and this is the first time I had to clean the bushings on the shock.

    Thanks for your help everyone!

  9. #9
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    Check this out:

    http://www.austinbike.com/repairs/11...shock-bushings

    Big improvement for my blur lt2
    Austin Mountain Biking and worldwide travel pictures:

    http://www.austinbike.com

  10. #10
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    It could be both your cable rubbing against each other , which is tightly held by a bloody cable tie.

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