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




Post new topic Reply to topic  [ 11 posts ] 
Author Message
PostPosted: Mon May 26, 2014 11:03 am 
Offline

Joined: Wed Aug 10, 2011 4:03 pm
Posts: 317
Location: Porto, Portugal
Hello guys.

I need an help.

I am thinking about buy a Deda Superleggero seatpost. My frame is a 2010 Cannondale Supersix wich uses 31.6 diameter seatpost.

Currently brands are marketing the frames with 27.2 and I am thinking about buying to that extent.

I will have any problem using a reducer on carbon frame?

Thanks a lot for your help.

_________________
Cannondale Supersix '10


Top
 Profile  
 
PostPosted: Mon May 26, 2014 11:52 am 
Offline

Joined: Sat Sep 22, 2012 2:22 pm
Posts: 228
I used a plastic reducer on my carbon frame for many years without issue. Just make sure you use some carbon assembly paste


Top
 Profile  
 
Posted: Mon May 26, 2014 11:52 am 


Top
  
 
PostPosted: Mon May 26, 2014 2:01 pm 
Offline

Joined: Wed Aug 10, 2011 4:03 pm
Posts: 317
Location: Porto, Portugal
Thanks mitchgixer6.

A friend of mine tell me I have the risk of breaking the frame.

Is that true?

_________________
Cannondale Supersix '10


Top
 Profile  
 
PostPosted: Mon May 26, 2014 2:25 pm 
Offline

Joined: Fri May 25, 2007 6:43 pm
Posts: 2312
depends on the frame and the shim design, ask the manufacturer.

Generally a frame without a massively dropped top tube or an extended seat tube, using a long shim (10-12cm) will be fine.
As you move away from this it will *tend* to make a shim less suitable, as it adds an extra tolerance/more movement into the system.


Top
 Profile  
 
PostPosted: Mon May 26, 2014 3:42 pm 
Offline

Joined: Wed Aug 10, 2011 4:03 pm
Posts: 317
Location: Porto, Portugal
This picture help us.

What do you think?

Image

_________________
Cannondale Supersix '10


Top
 Profile  
 
PostPosted: Mon May 26, 2014 3:54 pm 
Offline

Joined: Tue Nov 11, 2003 9:47 pm
Posts: 2025
Location: Santa Cruz, California, USA
I use a USE 27.2 mm spacer in one of my carbon frames for the last 7 years. It's not broken yet.

If the shim is as long as the frame manufacturer's recommended post insertion it'll be fine. If that's not known it should be well below where the top tube meets the seat tube.


Top
 Profile  
 
PostPosted: Mon May 26, 2014 4:04 pm 
Offline

Joined: Wed Aug 10, 2011 4:03 pm
Posts: 317
Location: Porto, Portugal
Yes eric.

I have about 11cm below.

_________________
Cannondale Supersix '10


Top
 Profile  
 
PostPosted: Wed May 28, 2014 10:22 pm 
Offline
User avatar

Joined: Thu Aug 16, 2012 12:56 am
Posts: 462
Location: YYZ
Same here - I used this one with no issues for more than a year, also on a SuperSix. Just make sure you use carbon paste and you will be fine.

http://www.chainreactioncycles.com/use- ... -prod43707

_________________
2012 SuperSix - 6.30kg


Top
 Profile  
 
PostPosted: Wed May 28, 2014 11:10 pm 
Offline
User avatar

Joined: Sun Mar 16, 2014 3:43 pm
Posts: 143
So because of some manufacturers marketinghype, you are going to buy parts that doesnt suit your frame? . . . .

:|


BTW
In the wanted section you ask for: Deda superleggero stem 31.6
You forgot to mention the desired length.

(I have one , new in Original box 100 mm, but still haven't decide if Í keep it or not.
bought it for a frameset that I sold before it even was build) (not sure yet if it will fit my new build)


Top
 Profile  
 
PostPosted: Thu May 29, 2014 9:12 am 
Offline

Joined: Wed Aug 10, 2011 4:03 pm
Posts: 317
Location: Porto, Portugal
BRM,

But you have seatpost or stem?

I'm looking for seatpost.

_________________
Cannondale Supersix '10


Top
 Profile  
 
Posted: Thu May 29, 2014 9:12 am 


Top
  
 
PostPosted: Thu May 29, 2014 9:57 am 
Offline

Joined: Fri May 25, 2007 6:43 pm
Posts: 2312
BRM wrote:
So because of some manufacturers marketinghype, you are going to buy parts that doesnt suit your frame? . . . .
A skinny seat pin may take out some road vibrations. A 31.6 probably won't. That's one of the issues with massively oversize frame tubes, you need massively oversize seatpins.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 11 posts ] 


Who is online

Users browsing this forum: karmaz, mr4fox, Wielrenner, Yahoo [Bot] and 51 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. PRO Vibe UD carbon Di2 seatpost

in Road

dmoneysworks

3

415

Fri May 08, 2015 9:23 am

dmoneysworks View the latest post

There are no new unread posts for this topic. Where to get carbon cradle and support for seatpost?

in Road

VTBike

6

643

Thu Mar 05, 2015 11:35 pm

btompkins0112 View the latest post

There are no new unread posts for this topic. Fizik Carbon Braided rails - 3T seatpost?

in Road

danconi9

5

874

Wed Feb 25, 2015 9:31 am

bratz View the latest post

There are no new unread posts for this topic. Ritchey Superlogic Single Bolt Seatpost and Carbon Rail

in Road

SimonCHAN

2

288

Tue Jun 09, 2015 6:54 pm

Everyone View the latest post

There are no new unread posts for this topic. Should i buy a carbon frame

[ Go to page: 1, 2, 3 ]

in Road

treetrees

34

1716

Fri Mar 13, 2015 11:41 pm

efeballi View the latest post


It is currently Fri Sep 04, 2015 11:44 am

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