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




Post new topic Reply to topic  [ 33 posts ] 
Go to page Previous  1, 2, 3
Author Message
PostPosted: Wed Nov 20, 2013 10:36 am 
Offline
Shop Owner

Joined: Sat Jun 13, 2009 4:02 am
Posts: 1980
Location: NoVA/DC
I have found that 9000/9070 front derailleurs have to be set up a little higher than before, erring towards the 3mm max height over the big ring. This is due to that little bump that hangs over the OP's wear area. When in the hardest cog in the big ring, the chain should pass just under the bump. Set up traditionally, it will rub a good portion of the time, probably in the 3 hardest cogs.
I have not had any customers with this complaint yet. Considering the OP's front derailleur still has the inner cage plastic guide with no appreciable wear, and the shift to the big ring is much more stressful than the downshift, it is clear that the chain has been rubbing, at least intermittently. Or there are squirrels running around with a taste for nickel plate.


Top
 Profile  
 
Posted: Wed Nov 20, 2013 10:36 am 


Top
  
 
PostPosted: Wed Nov 20, 2013 12:28 pm 
Offline

Joined: Wed Jan 10, 2007 10:56 pm
Posts: 1070
Location: Canada
I'm not clear on your description. Dont you just use the outer limit adjustment to make sure there is no rubbing?

_________________
My RCA


Top
 Profile  
 
PostPosted: Wed Nov 20, 2013 3:48 pm 
Offline

Joined: Thu Apr 03, 2008 3:51 am
Posts: 34
thisisatest wrote:
I have found that 9000/9070 front derailleurs have to be set up a little higher than before, erring towards the 3mm max height over the big ring. This is due to that little bump that hangs over the OP's wear area. When in the hardest cog in the big ring, the chain should pass just under the bump. Set up traditionally, it will rub a good portion of the time, probably in the 3 hardest cogs.
I have not had any customers with this complaint yet. Considering the OP's front derailleur still has the inner cage plastic guide with no appreciable wear, and the shift to the big ring is much more stressful than the downshift, it is clear that the chain has been rubbing, at least intermittently. Or there are squirrels running around with a taste for nickel plate.

Great observation and tip. I've had a tough time finding the right combination of adjustments to dial out a bit of rubbing in the gear combos you describe. I've always tried to go as low as possible with my FD positioning. As you mention, this may not be correct with the 9000. I'm going to try the higher position - thanks!


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 33 posts ] 
Go to page Previous  1, 2, 3


Who is online

Users browsing this forum: Bing [Bot], Delorre, Exabot [Bot], fa63, Google Adsense [Bot], Nejmann, PSJoyce, sethjkay, Yahoo [Bot] and 55 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. Attachment(s) Dura Ace 9000 Front Mech

[ Go to page: 1, 2 ]

in Road

Ironman1125

25

1570

Mon May 25, 2015 2:54 am

goodboyr View the latest post

There are no new unread posts for this topic. Fitting carbon front mech clamp ,,,,,,,,,,,,,help

in Road

xena

11

470

Sat Dec 05, 2015 2:26 pm

xena View the latest post

There are no new unread posts for this topic. Zero setting for Campagnolo EPS front mech, v2 interface?

in Road

Miller

7

389

Wed Sep 09, 2015 9:40 am

Miller View the latest post

There are no new unread posts for this topic. Out cage swap - mid cage, short cage

in Road

NiFTY

0

284

Tue Aug 11, 2015 9:58 am

NiFTY View the latest post

There are no new unread posts for this topic. Force vs Force 22 (front mech)

in Road

identiti66

7

763

Mon Apr 13, 2015 11:35 am

identiti66 View the latest post


It is currently Tue Feb 09, 2016 10:11 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