Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

carbon seat post slipping

Notices
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.

carbon seat post slipping

Old 05-20-13, 08:57 AM
  #1  
Climbers Apprentice
Thread Starter
 
vesteroid's Avatar
 
Join Date: Feb 2012
Posts: 1,600
Likes: 0
Liked 0 Times in 0 Posts
carbon seat post slipping

the torque spec on my clamp says 6.2 nm I have a 6 nm t wrench. The seat post keeps slipping down on me after long rides with lots of climbing.

Would you torque it down a bit more, or get some of the carbon assembly paste? Or both, or some other idea?

The seat post is darn expensive and I dont want to damage it.

Thanks,
vesteroid is offline  
Old 05-20-13, 09:01 AM
  #2  
Banned
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Posts: 43,595

Bikes: 8

Liked 1,361 Times in 867 Posts
The gritty assembly paste is for that..

IDK what damage you can do exceeding the torque spec, from here, I'm not looking over your shoulder.
fietsbob is offline  
Old 05-20-13, 09:01 AM
  #3  
Senior Member
 
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 39,267

Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter

Liked 3,118 Times in 1,717 Posts
Torque spec's aren't always accurate, and it might be possible to go tighter, but a smarter play is to use a traction paste.

There are two basic types. Some use abrasive grit to bite into the frame and post and lock them together mechanically. Other types use small particles of high friction material to improve traction without marring. I'd start with the second type, and move to the grit type only if all else fails.
__________________
FB
Chain-L site

An ounce of diagnosis is worth a pound of cure.

Just because I'm tired of arguing, doesn't mean you're right.

“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FBinNY is offline  
Old 05-20-13, 09:54 AM
  #4  
Climbers Apprentice
Thread Starter
 
vesteroid's Avatar
 
Join Date: Feb 2012
Posts: 1,600
Likes: 0
Liked 0 Times in 0 Posts
Thank you FB thats what I needed to know.
vesteroid is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Apexhunter
General Cycling Discussion
6
12-11-17 11:49 AM
Monkey D.Luffy
Bicycle Mechanics
8
02-12-15 09:00 PM
Seattle Forrest
Road Cycling
7
02-01-12 09:52 AM
Cowboy905
Bicycle Mechanics
11
11-18-10 12:17 AM
jeanluc
Bicycle Mechanics
8
05-10-10 06:00 PM

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Your Privacy Choices -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.