Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About Impressum
It is currently Thu Nov 23, 2017 4:14 pm

All times are UTC+01:00





Post new topic  Reply to topic  [ 12 posts ] 
Author Message
PostPosted: Sun Jan 01, 2017 11:11 am 
Offline

Joined: Sun Dec 18, 2016 11:24 pm
Posts: 10
Just wondering what everyone thinks should be the proper torque for seatpost clamps when using a carbon seatpost, I torqued it to 6nm (the clamp notes 6.87) but maybe less?


Top
   
Posted: Sun Jan 01, 2017 11:11 am 


Top
   
 
PostPosted: Sun Jan 01, 2017 11:54 am 
Offline
User avatar

Joined: Sun Oct 05, 2014 4:54 pm
Posts: 279
Location: Norwich, UK
You can use less torque, particularly if using carbon assembly paste. If it's a normal carbon post I wouldn't worry too much. For ww gear, I usually go under the specified amount.

_________________
Supersix Evo Hi-Mod - 4.64kg


Top
   
PostPosted: Sun Jan 01, 2017 12:30 pm 
Offline
User avatar

Joined: Thu Jan 19, 2012 11:17 am
Posts: 161
Location: bottom edge of Australia
Correct torque will depend upon the post to tube contact / shape etc.

Great advice above - use some carbon assembly paste. I can typically get away with just under 5Nm on my seatpost clamps (I weigh 80kg and ride over plenty of bumps BTW) .....


Top
   
PostPosted: Sun Jan 01, 2017 4:03 pm 
Offline

Joined: Tue Aug 12, 2014 3:50 pm
Posts: 1017
Location: FIN
torque values are also specific for certain bolt/thread types. also all values are given FOR DRY BOLT. lubricating it , decrease torque by 25-30% ( for M4 & M5 bolts ).

_________________
Go to Heaven for the climate, Hell for the company.
Mark Twain


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


Top
   
PostPosted: Sun Jan 01, 2017 7:21 pm 
Offline

Joined: Sun Dec 18, 2016 11:24 pm
Posts: 10
Thanks for the advice!
I did use the carbon assembly paste, will use 5nm instead


Top
   
PostPosted: Sun Jan 01, 2017 7:23 pm 
Offline

Joined: Tue Dec 23, 2008 2:57 pm
Posts: 866
Location: NYC
Tubby16 wrote:
I torqued it to 6nm (the clamp notes 6.87) but maybe less?



MAX torque stamped on your seat clamp is not RECOMMENDED torque. Lots of exiting discussion on torque values on many forum threads ....use search bar. Start with 4 Nm and check if fit is fixed. If not, go up to 5 Nm and check again... do not exceed 6.87 which is the rated MAX torque value of your bolt. If you reach max torque and post is not fixed, then the parts you are trying to mate are a no go.

_________________
______________


Top
   
PostPosted: Tue Jan 03, 2017 7:56 pm 
Offline

Joined: Fri Sep 25, 2015 5:13 pm
Posts: 245
I always go by 5NM, with carbon paste


Top
   
PostPosted: Wed Jan 04, 2017 6:37 am 
Offline
User avatar

Joined: Thu Mar 24, 2011 6:06 pm
Posts: 916
My ww carbonice Eva clamp has a max torque rating of 4nm only, and says I probably need less.

_________________
Trek Mad-one 7 Series team colours http://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=115500&start=15

Fuji SL 1.1 http://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=140134&hilit=Fuji


Top
   
PostPosted: Wed Jan 04, 2017 8:04 am 
Offline

Joined: Sun Dec 18, 2016 11:24 pm
Posts: 10
Ended up buying a park torque wrench for 5nm, 4 was moving a bit still.


Top
   
PostPosted: Fri Jul 28, 2017 4:48 am 
Offline

Joined: Fri Jul 28, 2017 12:34 am
Posts: 30
I also never go more than 5nm for clamping carbon parts.
I use carbon paste, and will try to use 4nm, only going up if there is any slipping.


Top
   
PostPosted: Sun Jul 30, 2017 6:25 am 
Offline

Joined: Wed Mar 09, 2016 7:13 pm
Posts: 791
Using Carbon Paste (Tax), and torque of 4 nm, i had some Post Slip and got scratched :(.

Now im using about 5 nm, and seem ok (Colnago C60 with Colnago Seatpost)


Top
   
Posted: Sun Jul 30, 2017 6:25 am 


Top
   
 
PostPosted: Sun Jul 30, 2017 9:54 am 
Offline
User avatar

Joined: Mon Jul 07, 2014 8:15 am
Posts: 1712
Location: NorthEU
I stripped the thread of two 5mm alu clamps (probably very soft alu in this specific clamp).
I drilled them and re-threaded both to 6mm.

Honestly, this was better.
I don't use carbon paste, but it's zero issues with sliding seatpost.

Btw, for example, Ax has a maximum torque of 4Nm, some have 5Nm and some have 6Nm.

_________________
Bikes:

Ax Lightness Vial EVO D
Paduano Racing Fidia
Open *UP*
https://opencycle.com/showcase/the-xplo ... eelsonfire


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 12 posts ] 

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Canyon VCLS 1.0 seat clamp torque

in Road

vinuneuro

0

165

Sat Aug 05, 2017 1:07 am

vinuneuro View the latest post

There are no new unread posts for this topic. What shifter clamp torque with carbon handlebars?

in Road

vinuneuro

3

380

Sun Aug 20, 2017 12:31 pm

AfromD View the latest post

There are no new unread posts for this topic. 30.8mm seatpost clamp on 30.0mm frame

in Road

Luca79

2

326

Fri Jul 28, 2017 7:01 am

kman View the latest post

There are no new unread posts for this topic. NeilPryde Nazare seatpost clamp

in Road

rugbymad76

2

382

Fri Mar 17, 2017 8:53 am

rugbymad76 View the latest post

There are no new unread posts for this topic. tightening asian carbon seatpost clamp

in Road

nrsnow

8

637

Mon Apr 10, 2017 7:26 pm

stockae92 View the latest post


All times are UTC+01:00


Who is online

Users browsing this forum: Google Adsense [Bot], tonytourist and 25 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited