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Mystery Creaking sound when I pedal

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Mystery Creaking sound when I pedal

Old 06-21-10, 01:53 PM
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JParrxC
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Mystery Creaking sound when I pedal

Hi there, I have recently built a Schwinn Circuit up and whenever I pedal it creaks. I have brand new cranks, pedals, chain and bottom bracket. It's not the pedals, I switched them out with another bike's, that didn't creak, it was still there. Not the cranks being loose, I tightened them all and it still made noise. Mostly sure it's not the bottom bracket, it's a sealed cartridge square taper and it was threaded and tightened all the way when I installed it. I just have no idea anymore.


tl;dr Creak, Not pedals or crank, prob not BB
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Old 06-21-10, 02:59 PM
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Saddle, seat post, stem, handlebars, bottle cages - all move/flex in sync with your pedaling.
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Old 06-21-10, 04:12 PM
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Need to know how often (once per full crank revolution?) and what kind of noise - long creak, more of a clicking, etc. Bottom bracket is still a possibility, as are the others listed above. Is frame new?
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Old 06-21-10, 05:02 PM
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Take the cranks arms off. Then grease the square taper holes and the bolt threads. Tighten it back together securely. I bet it will be quiet after that.
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Old 06-21-10, 06:12 PM
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conspiratemus1
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+1. And don't listen to those people who tell you NEVER to grease the crank-spindle interface!
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Old 06-21-10, 08:44 PM
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I've got a similar problem. Creaks more when I put force on the pedals and is a short, intermittent creaking. Also happens sometimes with no load on pedals/cranks when coasting. Any ideas?
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Old 06-22-10, 05:11 AM
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Originally Posted by Physmodus View Post
I've got a similar problem. Creaks more when I put force on the pedals and is a short, intermittent creaking. Also happens sometimes with no load on pedals/cranks when coasting. Any ideas?
I'm afraid the most likely suspect for that would be the frame, especially rear triangle. Anything more specific is just guessing. There's no substitute for having one's hands and eyes on the bike.
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Old 06-22-10, 05:21 AM
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Torque the chainring bolts to spec.
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