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PostPosted: Wed Oct 16, 2013 8:19 pm 
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So my Centaur BB started creaking on tonight's ride. Only got 700km on it. Fitted to a Centaur Carbon crankset with 53-39 rings. Creaking less or non-existent when climbing. Any ideas? Fitted it myself, too tight maybe?

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Last edited by Devon on Wed Oct 16, 2013 8:29 pm, edited 1 time in total.

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PostPosted: Wed Oct 16, 2013 8:25 pm 
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What BB? Power Torque? Threaded cups or press fit?

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Posted: Wed Oct 16, 2013 8:25 pm 


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PostPosted: Wed Oct 16, 2013 8:30 pm 
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Threaded & Power Torque; it's this years model.

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PostPosted: Wed Oct 16, 2013 9:11 pm 
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If you're sure it's the BB, strip, grease all metal to metal interfaces and reassemble. Most likely explanation would be cups moving in frame because of insufficient torque. I assume the wave washer is correctly installed?

When you say it doesn't do it when climbing, does that mean standing? If so I'd strongly suspect your saddle/seatclamp area rather than your BB. Other possible sources of creaks are QR/hub/frame interfaces, stem bolts, headsets, pedals etc. etc.

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PostPosted: Wed Oct 16, 2013 9:24 pm 
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One time I'd just finished putting a bike together. Went for a ride and stopped part way through because of a horrible "BB" noise. Abandoned altogether and went home on the subway, that's how bad the noise was.

It was a pedal.

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PostPosted: Thu Oct 17, 2013 10:24 am 
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Seated and standing. It only creaks when the cranks are turning.

I initially thought pedals too, bikerjulio, however when pedalling with only one foot the noise continues.

As a side thought I did adjust my seatpost height recently, I will check it just to humour the possibility, but it seems bizarre.

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PostPosted: Thu Oct 17, 2013 10:32 am 
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i had this on an older ultratorque BB. Used blue loctite on the cup threads which eliminated the problem. I think there is an online guide on how to do it. Just do a google

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PostPosted: Thu Oct 17, 2013 10:39 am 
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Ah, that actually gives me a thought. It was a brand new BB and an older frame; so the threads may be worn. Therefore in theory, Loctite would do the trick...

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PostPosted: Thu Oct 17, 2013 10:49 am 
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Had this too. It was dirt on the dropout. Only creaked when pedalling.

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PostPosted: Thu Oct 17, 2013 11:47 am 
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RTW wrote:
Had this too. It was dirt on the dropout. Only creaked when pedalling.
I spent a few hours taking my cranks off, removing the BB30 bearings, cleaning, and greasing it - two times! It was the rear skewer/dropout and it only squeaked when I was pedaling.


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PostPosted: Thu Oct 17, 2013 11:51 am 
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Bizarre! I will give the bike a thorough clean, thanks.

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PostPosted: Thu Oct 17, 2013 11:53 am 
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For my issue, it was the torque that is applied during the pedaling that caused some rotation/movement in the dropout - even though the QR was tight. If you're not pedaling, there's no torque, so there was no sound.


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PostPosted: Thu Oct 17, 2013 11:58 am 
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That's exactly the conclusion I came to re:the dirty dropout theory.

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PostPosted: Thu Oct 17, 2013 12:04 pm 
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You can apply grease to the dropout as well. I like greasing things.

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Posted: Thu Oct 17, 2013 12:04 pm 


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PostPosted: Thu Oct 17, 2013 12:09 pm 
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Does that not attract A LOT of dirt?

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