FINALLY found that creaking sound- Mtbr.com
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  1. #1
    OOOOOOOh Gee Are Eee
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    FINALLY found that creaking sound

    After I built up my Niner One 9 about a month and a half ago I noticed there was a creaking coming from the bottom bracket area. It was super annoying. I pulled everything apart, watched Niner's install video again, then reinstalled the Biocentric II based on the video.

    Creaking continued. Damnit Niner!

    Did a little research and found some older suggestions which talked about something called Oaty joint compound. To Amazon I went and bought some of that stuff. Tore open the BB again and slathered Oaty Joint compound all over where they said to slather it. Rematches the video and reinstalled per specs.

    If anything the creaking was worse. Blast it Niner, this EBB is bullsh!!

    Went away for a few weeks, come back and do a ride cringing every time it groaned and a creaked and put the bike away frustrated (I LOVE this bike but for the damned creaking!)

    So yesterday I tore it all apart again, browsed through the Niner forums again and saw most people don't use the Oaty stuff on newer Niner's. Opened it back up and cleaned everything. Greased the bolts which someone said was a common cause of creaking, retightened everything up and... Still creaked.

    So after resisting the urge to throw the bike under a truck, I spent a lot of time sitting on the bike trying to make the sound for my wife. Yep definitely in the bottom bracket area, but oddly it only happened when there was pressure on the chain, if I stood on the cranks and bounced up and down the bike was quiet.

    Turns out I'd spent a ton of time trying to track down a problem with the Biocentric BB when the problem was actually the cranks. I pulled the Next SL off the bike and tightened the chainring down quite a bit, put it back on the bike and sure as poop, the damned thing is perfectly silent now.

    Damnit Niner... Oops. Damnit Ogre. You should know better than make broad assumptions when troubleshooting.

    Can't wait to get back on the trail again.


  2. #2
    mtbr member
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    Bottom bracket type sounds are elusive and can come from anywhere, so I know the feeling.
    As little bike as possible, as silent as possible.
    Latitude: 5736' Highlands, Scotland

  3. #3
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    I had a creak on my One 9 RDO a few months ago.

    Took out and cleaned the EBB. Reinstalled with carbo grip
    Installed a new bb
    Cleaned and greased the cranks
    Ensured chain ring and cogs were tight
    Checked pedals
    Checked stem, bars, seatpost, and seat
    Cleaned and greased rear axle
    Removed and cleaned headset
    Cleaned and greased steer tube
    Checked cleats on my shoes

    After all that, it ended up being the front axle on my rigid fork. After cleaning and a small amount of grease, the bike was perfectly silent.

  4. #4
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    I feel less bad now. It's so hard to pinpoint a sound like that it can be tricky to find it.


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  5. #5
    MaxTheCyclist.com
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    My bike creaked today on the way into town. The creak was gone on the way out of town. You can't explain that!

    I'm now pretty friendly with the mechanics at my local shop. That's actually not such a good thing, because they know I can do my own maintenance, so to save face, I have to fix everything myself. But every once in a while, I bring something in for help.

    Some wisdom they've given me over the years:

    1. Bikes do better if they're ridden. Bearings don't seize, grease stays dispersed, corrosion keeps at bay.

    2. Creaks and squeaks happen. You can usually ignore them for a bit before you go crazy trying to find the cause. Crunching is never okay.

    3. No ham-fisting. No over-tightening. No over-preloading.

    4. Check your chainring and disc brake bolts often.
    Ultralight bikepacking and gear lists... MaxTheCyclist.com

  6. #6
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    Of course, sometimes the chainring decides to detach itself due to awesome leg power*.

    There was some preliminary creaking which I ignored.






    *Well that's my story, and I'm sticking to it.
    As little bike as possible, as silent as possible.
    Latitude: 5736' Highlands, Scotland

  7. #7
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    I've broken more than one chainring that way. This one is a direct mount so instead of chainring bolts it was just kind of wiggling around on the spline. (Ogre isn't a great mechanic)


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  8. #8
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    Quote Originally Posted by mdilthey View Post
    My bike creaked today on the way into town. The creak was gone on the way out of town. You can't explain that!
    Dissimilar metals expand at different rates. Colder temps in the morning = creak. Warmer temps in the afternoon, stuff expands a little and fits tighter = no more creak.

  9. #9
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    So make sure you freeze your components before tightening bolts

    (I kid)


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