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Clicking noise when pedaling - don't think it's the chain

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Clicking noise when pedaling - don't think it's the chain

Old 10-17-16, 11:52 AM
  #1  
Thanase
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Clicking noise when pedaling - don't think it's the chain

Hello bike forum,

I'm far from a bike expert so please excuse my newbiness.
I have a Motobecane Fantom 29er with disk brakes, ordered online therefore I had to do some assembling. It's relatively new, and I'm suddenly picking up on some annoying noises.
The one I want to ask about in this post however is a very distinct clicking noise that only occurs when I am sitting on the bike pedaling. It sounds like it's coming from around the chain, under the seatpost, and around the pedals. However when I pedal the bike without sitting on it, there are no clicking noises, which leads me to believe it's most likely not the chain making the noises.
I really don't even know what to check or attempt to fix, as I can't get a good look at where exactly the sound is coming from when I'm riding the bike.
Does anyone have any ideas as to what this may be?
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Old 10-17-16, 12:13 PM
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Make sure your pedals are actually attached firmly. I had this exact problem (complete with the click) on a bike I had to assemble myself. Turns out I had the pedal just loose enough to click. Had a guy figure it out and tighten it up for me, which made the click go away.
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Old 10-17-16, 12:37 PM
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imi
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Shoelace? (not joking)
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Old 10-17-16, 12:41 PM
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If it makes the noise while sitting but not while standing and pedalling I would look at the seat post and seat. Weight shifting from side to side while pedaling can cause noise in the seat.
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Old 10-17-16, 12:53 PM
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+1 to both pedals and saddle/post suggestions. Often slightly loose pedals will click when sitting but not when standing and maintaining load full time.

So start with the pedals, I always remove, clean mating faces, apply fresh grease and reinstall TIGHT.

As for the saddle/post, test off the bike by grabbing the saddle leaning to put weight on it and rocking/twisting side to side, both near the back and at the nose.

If it's neither of these you've entered the twilight zone of BB clicks. Many pressed and threaded cartridge systems have trace play and will rock in the frame as either pedal is loaded. These are a bear to diagnose, and most people start dong trial and error fixes in an effort to find the problem.

Before you give up hope and go at the BB look for simple stuff. For example if it only clicks once per revolution, look behind the right cank for signs that it's touching the FD cage as it come by (only when on the outer ring). Also, laugh about it later like the tip of the FD cable touching.
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Old 10-17-16, 12:57 PM
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Do you have a seat post shim? If so, grease it up good. That was the culprit on a new mountain bike of mine.
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Old 10-17-16, 01:05 PM
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Shoe lace is valid too... if you do a high rpm pedal rate.
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Old 10-17-16, 02:01 PM
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I have gone ahead and tightened the seat post & pedal cranks however I'm still getting the clicking noise.
I am honestly looking for anything to tighten up at this point..
Also I'm certain it's not my shoelace.
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Old 10-17-16, 03:23 PM
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After much trying a bunch of different things out, I eventually tried tightening the actual pedal to the crank one more time using a wrench. Twisted it as tight as it could go, and that turned out to be the problem.

Thanks for all the responses.
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Old 10-17-16, 08:03 PM
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Normally what that noise is is the crank quill attachment, at least on tapereds. On several of mu bikes around 500 miles the cranks come loose. It is worth getting it looked at as soon as possible or the wear can get serious. I would imagine that is not a problem with the newer designs.

Anyway, good thing you found your problem.
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