HOT: Active* forum members generally gain 5% discount at starbike.com store!
Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Articles FAQ Contact About




Post new topic Reply to topic  [ 24 posts ] 
Go to page 1, 2  Next
Author Message
 Post subject: Carbon Fiber Bolts?
PostPosted: Sat Aug 22, 2009 10:53 pm 
Offline

Joined: Mon Jan 02, 2006 2:57 am
Posts: 4
I thought I saw a link to some carbon fiber bolts/screws about a year or so ago, but can't find it. Does anybody know of a company that makes them? Thanks.


Top
 Profile  
 
 Post subject: Carbon Fiber Bolts?
Posted: Sat Aug 22, 2009 10:53 pm 


Top
  
 
 Post subject: Re: Carbon Fiber Bolts?
PostPosted: Sat Aug 22, 2009 11:57 pm 
Offline
User avatar

Joined: Mon Jan 02, 2006 12:26 pm
Posts: 317
Location: Athens,Greece
Schmolke carbon...

http://www.schmolke-carbon.de/carbon/ca ... chraub.php

_________________
Cycloblog.gr


Top
 Profile  
 
 Post subject: Re: Carbon Fiber Bolts?
PostPosted: Mon Aug 24, 2009 6:36 pm 
Offline
Moderator
User avatar

Joined: Wed Aug 23, 2006 9:11 pm
Posts: 2806
Location: People's Republic of Boulder
BTP and TasyNutz have them as well. Very pricey.

_________________
-Deacon Doctor Colorado Slim


Top
 Profile  
 
 Post subject: Re: Carbon Fiber Bolts?
PostPosted: Mon Aug 24, 2009 9:43 pm 
Offline
User avatar

Joined: Sun Sep 17, 2006 11:41 pm
Posts: 1512
Location: Tenerife, Spain ||| Sydney, Australia
One thing I'll give them though... They are stronger than I thought... for the bottle cages that is... :o

_________________
Vertebrae. Precision braking and shifting.


Top
 Profile  
 
 Post subject: Re: Carbon Fiber Bolts?
PostPosted: Tue Aug 25, 2009 6:09 pm 
Offline
Shop Owner

Joined: Fri Jun 05, 2009 6:05 pm
Posts: 165
Location: San Diego, CA
Buy a TIME. Comes with free French made water cage bolts.

_________________
www.pistapalace.com


Top
 Profile  
 
 Post subject: Re: Carbon Fiber Bolts?
PostPosted: Tue Aug 25, 2009 7:34 pm 
Offline

Joined: Wed Feb 27, 2008 3:41 pm
Posts: 1039
Heard that they are actually stronger than alloy bolts, so one can use them anywhere on the bike except for seatpost clamps and stems.


Top
 Profile  
 
 Post subject: Re: Carbon Fiber Bolts?
PostPosted: Tue Aug 25, 2009 9:48 pm 
Offline

Joined: Sat Aug 16, 2008 8:27 pm
Posts: 266
Location: Location Location!
Raxel wrote:
Heard that they are actually stronger than alloy bolts, so one can use them anywhere on the bike except for seatpost clamps and stems.


:shock:


Top
 Profile  
 
 Post subject: Re: Carbon Fiber Bolts?
PostPosted: Tue Aug 25, 2009 10:08 pm 
Offline

Joined: Tue Oct 14, 2008 12:56 am
Posts: 258
Cyclespeed Australia sells them for my antipodean brethren:

http://www.cyclespeed.com.au/c/145882/1 ... bolts.html

_________________
"Light bike? Its still about the engine!".


Top
 Profile  
 
 Post subject: Carbon bolts...
PostPosted: Tue Jan 14, 2014 10:00 am 
Offline

Joined: Mon Jan 06, 2014 4:30 am
Posts: 40
Hi, keen to hear who is using carbon, nylon or even plastic bolts? Where do you use them? Lastly where do you purchase them?

Cheers
Baz


Sent from my iPad using Tapatalk


Top
 Profile  
 
 Post subject: Re: Carbon bolts...
PostPosted: Tue Jan 14, 2014 5:40 pm 
Offline

Joined: Sun Jun 17, 2007 6:56 pm
Posts: 710
Schmolke makes them, and you can't use them on anything load bearing like a stem. You can use them a bottle cage, headset cap, derailleurs. Here is a complete list of where you can used them:

http://www.schmolke-carbon.de/carbon/ca ... schrau.php

_________________
6.24kg CAAD10


Top
 Profile  
 
 Post subject: Re: Carbon bolts...
PostPosted: Tue Jan 14, 2014 9:03 pm 
Offline

Joined: Mon Jan 06, 2014 4:30 am
Posts: 40
Thanks for that, I don't really understand why if carbon is so strong and we use it for load bearing in most applications that the bolts are different and can't be load bearing. I'm not arguing, I'm just keen to understand the reasoning or really the engineering behind why its brilliant for frames, cranks, bars, stems...but for this application its no good?

Cheers baz


Sent from my iPad using Tapatalk


Top
 Profile  
 
 Post subject: Re: Carbon bolts...
PostPosted: Tue Jan 14, 2014 9:35 pm 
Offline

Joined: Sat Jan 26, 2008 10:25 am
Posts: 218
Location: Cantabria
The problem is you can build carbon rods that are stronger and stiffer than almost anything else (boron composite would be even stiffer). But how do you deal with the shear forces at the base of the threads?

Furthermore, for certain applications, a material with the fragile failure mode of CFRP is a risk. You prefer something able to bend past the yield strenght point in places where your life is at risk.


Top
 Profile  
 
 Post subject: Re: Carbon bolts...
PostPosted: Tue Jan 14, 2014 11:27 pm 
Offline
in the industry
User avatar

Joined: Thu May 29, 2008 12:22 am
Posts: 597
As far as I'm aware 'carbon' bolts aren't usually carbon fibre as such either. I'm fairly sure that they are peek plastic impregnated with carbon. Not that there's anything wrong with that :D


Top
 Profile  
 
 Post subject: Re: Carbon bolts...
PostPosted: Tue Jan 14, 2014 11:56 pm 
Offline
Moderator
User avatar

Joined: Wed Aug 23, 2006 9:11 pm
Posts: 2806
Location: People's Republic of Boulder
I got some carbon bolts with a Time RXR frameset. I would only use them in water bottle cage application where a fail would not change my ability to ride home.

_________________
-Deacon Doctor Colorado Slim


Top
 Profile  
 
 Post subject: Re: Carbon bolts...
Posted: Tue Jan 14, 2014 11:56 pm 


Top
  
 
 Post subject: Re: Carbon bolts...
PostPosted: Wed Jan 15, 2014 3:28 am 
Offline

Joined: Tue Aug 02, 2011 9:20 pm
Posts: 1196
Location: New Zealand
I'm only using nylon bolts for bottle cages but some people use them in derailleurs for tension screws as well and holding on brake blocks

_________________
2012 BMC SLR 6.02kg http://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=110390


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 24 posts ] 
Go to page 1, 2  Next


Who is online

Users browsing this forum: aaric, amey, Bing [Bot], fasdflkjweorinjs, FIJIGabe, Google Adsense [Bot], Rippin and 48 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:  

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Are Deda Ti bolts always this bad?

[ Go to page: 1, 2 ]

in Road

MajorMantra

26

2999

Wed Dec 11, 2013 11:18 pm

andreszucs View the latest post

There are no new unread posts for this topic. shortening ti bolts

in Road

PoorCyclist

6

505

Thu Aug 14, 2014 10:16 am

5 8 5 View the latest post

There are no new unread posts for this topic. Need Seat Post Yoke Bolts, Where?

in Road

synthesis

2

166

Sun Jul 27, 2014 6:56 pm

synthesis View the latest post

There are no new unread posts for this topic. sram red clamp t bolts and nuts

in Road

nickf

1

262

Sun Nov 10, 2013 4:58 am

lechat View the latest post

There are no new unread posts for this topic. Titanium Bolts in stem. Questions

[ Go to page: 1, 2 ]

in Road

alanjob

26

1543

Fri Jan 17, 2014 9:36 am

alanjob View the latest post


It is currently Wed Sep 17, 2014 4:54 pm

All times are UTC + 1 hour




Advertising   –  FAQ   –  Contact   –  Convert   –  About

© Weight Weenies 2000-2013
hosted by starbike.com


How to get rid of these ads? Just register!


Powered by phpBB