Strange Creack

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Strange Creack
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Posted: Jun 25, 2019 at 5:06 Quote
Hello guys
Did anyone experienced such sound ?

https://youtu.be/HLf6nY88Ckg

Wheel is new, chain and casette too.
Everything is well maintained and properly greased (spokes too :/) and torqued, bearings are smooth
It is creaking only when pedalling.
It comes from around center of the weheel
Doesnt matter if hard or light... much force or dont...creaking is randomly intense.
to stop creaking it just needs to stop pedal for a second....
randomly appears moments or hours later...
it driving me mad Madder

Posted: Jun 25, 2019 at 5:48 Quote
Sounds like spokes to me. Was the wheel properly tensioned when it was built?

Posted: Jun 25, 2019 at 5:54 Quote
What brand wheel? I had cracked axle in E13 wheel before. It would creak.

Posted: Jun 25, 2019 at 5:57 Quote
Tought it was spokes..., wheel was re-tensioned... no difference.
Custom wheels
Industry nine torch hubs
Sapim CX ray spokes
Sapim polyax nipples
Spank Oozy 350 rim

Axle is intact, greased

Posted: Jun 25, 2019 at 7:28 Quote

Check your crank / chain ring bolts. also your seat rails.

Pro tip; the noise is almost never coming from where you think it its. The sound seems to happen on the down stroke of your pedal. You need to try and rule in what particular motions/ activity is causing the sound.

Posted: Jun 25, 2019 at 7:32 Quote
cranks and bolts were checked.
doesn't matter on position... it can creak on top...sometimes on middle of the stroke...
per 3-4 revolutions...sometimes every other.... or all....
it creaks even Im not on saddle... so this was eliminated as the sourceFrown

Posted: Jun 25, 2019 at 7:37 Quote
tr4nc3t0p14 wrote:
cranks and bolts were checked.
doesn't matter on position... it can creak on top...sometimes on middle of the stroke...
per 3-4 revolutions...sometimes every other.... or all....
it creaks even Im not on saddle... so this was eliminated as the sourceFrown

Does it make noise without putting torque into the drive train?

Can you reproduce the noise on the stand?

Suspension pivots, BB, pedal spindles ... anything that moves or can come off your bike can be a source of the noise. Also, tight bolts can still creak if there is dirt between the mounting surfaces.


Sometimes its just faster to tear down, clean, grease and re-torque everything on the bike than trying to diagnose the noise.

Posted: Jun 25, 2019 at 7:55 Quote
cmcrawfo wrote:
tr4nc3t0p14 wrote:
cranks and bolts were checked.
doesn't matter on position... it can creak on top...sometimes on middle of the stroke...
per 3-4 revolutions...sometimes every other.... or all....
it creaks even Im not on saddle... so this was eliminated as the sourceFrown

Does it make noise without putting torque into the drive train?

Can you reproduce the noise on the stand?

Suspension pivots, BB, pedal spindles ... anything that moves or can come off your bike can be a source of the noise. Also, tight bolts can still creak if there is dirt between the mounting surfaces.


Sometimes its just faster to tear down, clean, grease and re-torque everything on the bike than trying to diagnose the noise.

Nope. it does not. cannot replicate the noise on stand Frown
only when pedalling.
I cleaned everything, regreased all the contact points.
no dirt anywhere. suspension is smooth as butter. no noise when pushing or twisting, jumping ...

Posted: Jun 25, 2019 at 8:59 Quote
Does it do it when pedalling stood up? Might be the seat or seatpost
Kes

Posted: Jun 25, 2019 at 9:23 Quote
fxrextreme wrote:
Does it do it when pedalling stood up? Might be the seat or seatpost
Kes

Yes it does. Frown ... saddle and seatpost are ok.

Posted: Jun 25, 2019 at 16:05 Quote
Is it a carbon crank? Could be pedal insert coming loose. I've heard of this happening somewhere before but I can't remember where
Kes

Posted: Jun 26, 2019 at 4:36 Quote
It is AL crank. no loose insert

Posted: Jun 26, 2019 at 5:42 Quote
tr4nc3t0p14 wrote:
It is AL crank. no loose insert

So let’s circle back, where do u think the noise is coming from?

Noise cannot be replicated on the stand.
The noise is related to torque.


OP has ruled out: Crank bolts, seat, seat post, suspension pivots, axle

(Assuming its not the stem/bar interface, or the CSU)

My money is on the BB.

Posted: Jun 26, 2019 at 9:01 Quote
it is crearly comming from back wheel
at least from hub area and spokes just resonate.

no matter how much torque I apply
sometimes it creak loud when pedalling soft, sometimes quiet when pedalling hard and vice versa.

It doesnt do any noise when pedalling backwards on pusshing cranks with force when standing or moving slowly. Frown

is it possible that it has something with clutch on my rear mech ?
or nippleholes and nipples on rim ?

Posted: Jun 26, 2019 at 9:25 Quote
I wouldn't think your mech has anything to do with it., as it and the clutch will still move when backpedaling or simply activating the suspension.

lube the nipples, at the rim. and ensure the wheel is properly tensioned ?

I am seriously out of guesses.

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