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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 12-09-07, 01:26 AM   #1
furiousbob
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Help diagnosing BB creak noise

I've got an 08 Mercier Kilo TT with stock cranks/BB and a powergrip pedal+strap setup

Everything's been tightened down.

With both sides, on the downstroke, I get a one or two short creaks.

On the upstroke, I get no creaks. Backpedaling gets the same short creaks.

I've checked my pedals and all the crank nuts. Is it just the crappy stock BB/cranks? They're truativ cranks btw. I've only had the bike for about two months.
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Old 12-09-07, 09:31 AM   #2
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tighten your seatpost collar. then go to the bike mechanics thread.
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Old 12-09-07, 09:47 AM   #3
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A beer says its the chainring bolts
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Old 12-09-07, 11:08 AM   #4
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Stand up and pedal. Does it still happen? If so, chainring bolts. If that doesn't work, hammer to BB.
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Old 12-09-07, 11:12 AM   #5
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Sheldon Brown has a page on diagnosing creaks---just go there and do what he says.
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Old 12-09-07, 11:31 AM   #6
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http://www.sheldonbrown.com/creaks.html
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Old 12-09-07, 01:08 PM   #7
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If its a cartridge BB, did you grease the threads and the inside of the cup?

-Rob.
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Old 12-09-07, 09:27 PM   #8
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Ok I used all my power and might to tighten the crank bolts, pedals, seatpost, even the stem setup and the creaking seems to have disappeared. Now I just gotta figure out why my handlebars creak when standing up to climb hills.

Just so I don't have to start another thread, handlebars creak if they're not tempered right?
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Old 12-09-07, 10:01 PM   #9
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Handlebars can creak for a number of reasons. If your stem has a removable face plate, loosen all of the bolts and retighten them equally, taking up the slack evenly across the faceplate as you tighten it, kinda like the lugnuts on a car. You want equal tension at the top and bottom. Also, if the bar is a different diameter than the stem (risers on a road stem with the wrong shims), it can creak.

As for tempering, I have never heard of that.

-Rob.
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Old 12-09-07, 10:03 PM   #10
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Oh that's probably it then, the top bolt is tightened more than the bottom. I'll fix it tomorrow. Thanks.
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Old 12-09-07, 10:10 PM   #11
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Not a problem.

-Rob.
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Old 12-10-07, 10:36 PM   #12
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Ok well evening out the nuts made more creaking. A lot more creaking. Solution? Should I grease everything up?
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Old 12-11-07, 12:42 AM   #13
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Grease can't hurt. See what it does. I've found that a lot of cheap stems with 2-bolt faceplates creak when standing and putting a load on one side of the bars or the other.
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Old 12-11-07, 12:49 AM   #14
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Quote:
Originally Posted by D(C) View Post
Grease can't hurt. See what it does. I've found that a lot of cheap stems with 2-bolt faceplates creak when standing and putting a load on one side of the bars or the other.
+1
my friend has this same creaking and he complains about it all the time and he has a two-bolt faceplate.
He figures once he upgrades to a thomson or a more secure 4-bolt faceplate in general, the creaking will stop.
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Old 12-11-07, 10:13 PM   #15
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Well it turned out to be my quill stem adapter. I took it out today and regreased everything. I also took the time to dismantle everything else on my ride and regreased. No creaks whatsoever.
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Old 12-11-07, 10:18 PM   #16
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i need to get rid of my creaks.. its sooo annoying.
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Old 12-11-07, 11:15 PM   #17
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grease!
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Old 12-11-07, 11:20 PM   #18
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what do i grease? im going to tighten everything first.
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Old 12-11-07, 11:57 PM   #19
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grease the seat first, if that doesn't work, grease the pedals and the grips.
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