Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 07-10-10, 05:08 AM   #1
Monkey Face
Senior Member
Thread Starter
 
Monkey Face's Avatar
 
Join Date: Dec 2009
Location: Cheltenham, England
Bikes: Bianchi Intenso Veloce
Posts: 588
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
A cure for creaky carbon - seatpost I think

I have a (nearly) new Wilier Mortirolo and the seatpost creaks - it's a Ritchey Pro carbon and the frame is carbon. Before I go to the bike shop and get sold something I don't really need, is there anything I can use to stop it?
Monkey Face is offline   Reply With Quote
Old 07-10-10, 07:30 AM   #2
HillRider 
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 29,108
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 174 Post(s)
First, is the creak in the seatpost/frame inteface or in the saddle rail/saddle clamp joint? There is a product called "Carbon Assembly Paste" that is recommended for carbon components in place of grease. It provides a non-slip function and keeps the seatpost from freezing in the frame too. So, the shop will sell you something you really do need.
HillRider is offline   Reply With Quote
Old 07-10-10, 10:16 AM   #3
badamsjr
17yrold in 64yrold body
 
Join Date: May 2010
Location: Northern CA
Bikes:
Posts: 922
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
+1 I also think you might be looking at a seat/clamp problem. I have a B67 that creaks, no matter what seatpost I use it on, so that may be a consideration too.
badamsjr is offline   Reply With Quote
Old 07-12-10, 08:49 AM   #4
Monkey Face
Senior Member
Thread Starter
 
Monkey Face's Avatar
 
Join Date: Dec 2009
Location: Cheltenham, England
Bikes: Bianchi Intenso Veloce
Posts: 588
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
LBS cleaned and lubed the seatpost for free, but it's still creaking... or rather, the bike is still creaking. No creaking if I stand, or if I sit on the top tube (awkward, but it had to be done), so I guess it MUST be the saddle or tube. I'll get some lube and try to figure it out myself, otherwise it's a strip-down job.
Monkey Face is offline   Reply With Quote
Old 07-12-10, 08:53 AM   #5
dstrong 
Senior Member
 
dstrong's Avatar
 
Join Date: Aug 2005
Location: Awesome, Austin, TX
Bikes: Specialized Roubaix, Interloc Impala, ParkPre Image C6
Posts: 3,839
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 31 Post(s)
Quote:
Originally Posted by badamsjr View Post
+1 I also think you might be looking at a seat/clamp problem. I have a B67 that creaks, no matter what seatpost I use it on, so that may be a consideration too.
+2 I had this problem, went the "Carbon Assembly Paste" route with no effect...then dis-assembled, lubed and re-tightened my saddle clamp and the squeak stopped.
__________________

2014 Specialized Roubaix2003 Interloc Impala2007 ParkPre Image C6 (RIP)

dstrong is offline   Reply With Quote
Old 07-12-10, 04:50 PM   #6
Ingleside
MARGINALS
 
Join Date: Sep 2006
Location: San Francisco
Bikes: 09 Tarmac Pro SL / Sunday BMX /
Posts: 420
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
My "S-Works" carbon seatpost clamp was the culprit when I was diagnosing my click/creak issue on my Tarmac. Try doing what dstrong suggested to see if it helps.

In my case a badly designed seat post is where the problem originated from. A Thompson post fixed everything.
Ingleside is offline   Reply With Quote
Old 07-12-10, 05:47 PM   #7
operator
cab horn
 
Join Date: Jun 2004
Location: Toronto
Bikes: 1987 Bianchi Campione
Posts: 28,306
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Lets confirm that the OP is 100% sure and has taken the steps necessary to ensure that actually is the seatpost/seat area that is causing noise?
operator is offline   Reply With Quote
Old 07-12-10, 06:29 PM   #8
HillRider 
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 29,108
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 174 Post(s)
Quote:
Originally Posted by operator View Post
Lets confirm that the OP is 100% sure and has taken the steps necessary to ensure that actually is the seatpost/seat area that is causing noise?
The only firm evidence is that the creak stops when he stands or puts his weight on the toptube so that does point to the saddle/seatpost as the culprit.
HillRider is offline   Reply With Quote
Old 07-19-10, 01:49 AM   #9
Monkey Face
Senior Member
Thread Starter
 
Monkey Face's Avatar
 
Join Date: Dec 2009
Location: Cheltenham, England
Bikes: Bianchi Intenso Veloce
Posts: 588
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Took off the saddle, cleaned the clamp, lubed and tightened it up. Things improved, but it's still creaking a little. I think it's the non-incremental saddle clamp, which is not that great a fit to the post - it kind of sits against the post on it's four corners. Most other clamps I've has have been incremental - I think... (certainly the Thomson's on my mtb's) or I've not noticed because they didn't creak. I'll probably live with it for a month or two and see if it 'beds in' at all.
Monkey Face is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 08:39 AM.