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 06-14-12, 03:48 PM   #1
Waves77
Senior Member
Thread Starter
 
Waves77's Avatar
 
Join Date: Sep 2008
Bikes: 2009 Caad9-5
Posts: 443
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
First carbon fiber frame build. Couple Qs.

I have the torque wrenches and the fork steerer is already cut to measure.

Mainly I'm wondering where to use grease, and where to use carbon paste. I'll be using alloy handlebars and stem, not sure about seatpost (carbon or alloy).

Is it mainly carbon-carbon -> paste
alloy-alloy -> grease (bottom bracket, etc. not handlebar-stem)

How about the carbon steerer? Carbon paste on the seatpost regardless of material?

Any other tips/caveats highly appreciated!
Waves77 is offline   Reply With Quote
Old 06-14-12, 04:06 PM   #2
JTGraphics
Senior Member
 
JTGraphics's Avatar
 
Join Date: Dec 2006
Location: So Cal
Bikes:
Posts: 2,673
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I use carbon assembly paste on all carbon parts that you'd apply grease to if it were an alloy.
I use it were you need to torque things so you can do it to specs and not worry about any slippage this includes FD clamp to seat post if you have one.
If carbon is involved no grease for sure!
__________________
It may not be fancy but it gets me were I need to go.
http://www.jtgraphics.net/cyclist_bicycles.htm
JTGraphics is offline   Reply With Quote
Old 06-14-12, 04:10 PM   #3
Jed19 
Senior Member
 
Jed19's Avatar
 
Join Date: Oct 2004
Bikes:
Posts: 4,228
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Yep, you got it pretty nailed down.

Carbon -> carbon , paste.

Alloy -> alloy, grease (maybe anti-seize for pedals, but grease is what I've always used)

I use an alloy seatpost in a carbon frame, and I use paste for that always.

Anything on carbon, paste in my opinion, carbon steerer especially. I don't know if you have to use anything on the steerer FWIW.

That's it pretty much.
__________________
Regards,

Jed
Jed19 is offline   Reply With Quote
Old 06-14-12, 05:13 PM   #4
Waves77
Senior Member
Thread Starter
 
Waves77's Avatar
 
Join Date: Sep 2008
Bikes: 2009 Caad9-5
Posts: 443
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Alright, thanks for the feedback guys!
Waves77 is offline   Reply With Quote
Old 06-14-12, 05:27 PM   #5
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: 28,776
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 36 Post(s)
I have two bikes with alloy stems and carbon steerers and have always assembled them dry, no grease and no paste. Neither has ever slipped even when torqued at the low end of the recommended spec. However, stem/steerer interfaces see little torque or load. For a carbon seatpost in any material frame and for carbon bars in any stem, paste for sure.
HillRider is offline   Reply With Quote
Old 06-15-12, 12:19 AM   #6
wesmamyke
Senior Member
 
Join Date: Nov 2009
Bikes:
Posts: 439
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
There was a few fork failures awhile ago that were blamed on carbon paste being used on the steerer/fork interface.

No idea if it's a real issue but I have never used carbon paste on the steerer and even with minimum torque have never seen a stem slip.
wesmamyke 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 02:40 PM.