Annoying sound :(

Discuss light weight issues concerning road bikes & parts.
2lo8
Posts: 413
Joined: Thu Mar 31, 2016 10:32 am

by 2lo8

If it is really something saddle/seatpost related, you should be able to make the sound just shifting your weight side to side, without pedaling, and without being clipped in. And possibly when riding with no hands depending on what kind of power output you need to make the sound.
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Asteroid
Posts: 216
Joined: Tue Jul 26, 2016 8:43 pm
Location: Los Angeles, California

by Asteroid

Most creaks get louder when one rides out of the saddle.
This includes bottom bracket, cassette, skewers, pedals, headset, stem/bars as the usual culprits.
It appears you need to swap out the seatpost. My money is on that component.
Oldbie

evan326
Posts: 480
Joined: Wed Sep 14, 2016 8:51 pm
Location: RVA,USA

by evan326

stormur wrote:no idea what you smoked, but I'm jealous...

This is the best reply I've ever seen on WW
I had the issue where it was my saddle rails were creaking inside my seatpost. Changing to a better clamping post fixed it for me. Maybe try greasing the rails?

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Fixie82
Posts: 353
Joined: Mon Mar 18, 2013 3:45 am

by Fixie82

Is it possible the post is fouling on a bottle cage bolt? 260mm is a lot of Post in the frame. Another possibility is a slightly trapped Di2 wire if you're running electronic?

I'm a little confused if this an intergrated type of setup what sort of seat clamp mechanism does it use?

rapsac
Posts: 35
Joined: Sat Jun 28, 2014 7:35 am

by rapsac

stormur wrote:I tried already 3 different carbon assmbly compunds ( Pinarello, Ritchey, Tacx )... and without any compound as well.

temporary no access to same dia post :(
skewers are DT RWS-> no chance for any sound from there


Most assembly compounds use a fine grain material to enhance friction. Which can make popping sounds if the holding friction force is overcome by the loading. The assembly compounds I mentioned do not have these fine grain additives but work in a different manner.
Worth a try perhaps. Anyway, best of luck, always annoyed by these sounds myself as well.

alcatraz
Posts: 926
Joined: Mon Aug 29, 2016 11:19 am

by alcatraz

Terve! I only smoke chinese pollution, thank you very much!

How many km have you put on the bike since you started looking for the location of the noise?

What about the rhythm of it? Is it like clockwork and which axle does it follow? Is the angle of the crank always the same when you hear it?

How about you switch the seatpost and seat for a ride to exclude them? What about switching pedals for a ride?

Bearings are loaded differently depending on your posture. I wouldn't exclude them just because they are more quiet out of the saddle than in the saddle.

/a

alistaird
Posts: 121
Joined: Thu Jul 21, 2016 8:21 pm

by alistaird

I have found this type of clicking from pedals - even though it seems to be related to in or out of the saddle - I find this changes the forces on the pedals slightly when you are out of the saddle. Try re-greasing the cleat/pedal interface.

A

Illuminate
Posts: 404
Joined: Mon May 24, 2010 4:18 am
Location: Australia

by Illuminate

Whilst unlikely, it may well be the saddle itself where the metal rail rods insert into the nylon/other housing. When seated in the saddle, there can be a tiny rotational movement of the saddle shell around these rails which can cause a 'tick'. It used to happen on a few old saddles I had but the newer ones have been quite silent. Probably more relevant to heavy riders like myself.
All the best.
I

alastairb
Posts: 102
Joined: Thu Dec 12, 2013 2:36 pm

by alastairb

Headset.

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jobvisser
Posts: 78
Joined: Sun Aug 14, 2016 10:24 am

by jobvisser

Seattube cracked or damaged ?

wpccrunner
in the industry
Posts: 365
Joined: Fri Dec 07, 2012 8:34 pm
Location: North Carolina

by wpccrunner

it'd be useful to know which bike we are discussing here...
what frame, seatpost, saddle, groupset, wheels, etc?

AJS914
Posts: 2005
Joined: Tue Jan 28, 2014 6:52 pm

by AJS914

I've also been curious what frame has a 400mm seatpost inserted into an integrated seatmast.

stormur
Posts: 1182
Joined: Tue Aug 12, 2014 3:50 pm
Location: FIN

by stormur

Headset was my thought as well. I tightened it now more than "enough" and... nothing. I changed BB as well ( just for peace of mind ) . Same; no change.

To clarify: I tested almost all variables : chainrings, saddles, pedals, all bearings ( incl headset ), seat collars, carbon assembly compounds ( or without )... that includes also different torques , from max to almost not enough . still same thing : light spin or hammering delivers silence. Same out of saddle. Moderate high cadence ( 80+) with some load ( uphill 2-3% + ) : knocking.

Left seatpost. But I'm VERY sure the sound comes from seat tube ( above bottle cage bolt ), so 1st thougth is still actual : to long post knocking frame inside. Sleeve for post has 15cm ( inside seat tube ) so post goes 11 cm beyond that. Tomorrow I employ hacksaw .
Go to Heaven for the climate, Hell for the company.
Mark Twain


I can be wrong, and have plenty of examples for that ;)

velomane
Posts: 158
Joined: Sun Jun 27, 2004 1:44 am
Location: Winnipeg, Canada

by velomane

Oh stormur, I am so sorry to have to tell you this: reading this thread, I have reached the conclusion that everything on your bike is contributing to the noise. This includes the molecules of the top tube irritating eachother as they interact with the current sunspot cycle and the appearance of Jupiter, Venus and Saturn in the evening. At this point, you should sell the bike and start over.

stormur
Posts: 1182
Joined: Tue Aug 12, 2014 3:50 pm
Location: FIN

by stormur

Blessed those who have nothing to say, and don't wear it into words.
Go to Heaven for the climate, Hell for the company.
Mark Twain


I can be wrong, and have plenty of examples for that ;)

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