Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About Impressum
It is currently Mon Nov 20, 2017 6:37 pm

All times are UTC+01:00





Post new topic  Reply to topic  [ 2 posts ] 
Author Message
PostPosted: Tue Dec 31, 2013 2:49 am 
Offline

Joined: Thu Aug 04, 2011 3:22 am
Posts: 5
Just upgraded from the old Osymetric rings to the ramped & pinned versions that were released earlier this month. Has anyone else installed and got these working?

Ultegra Di2, SRM7950, KCNC chainring bolts.

Finished the installation & I can't get the front derailleur setup properly. Either 50/11 drops the chain off the outside of the large chain ring (outwards) or selecting 50/25, 50/23 & even 50/21 drops the chain from the large front ring to the small ring (inwards). Going back to the old rings everything works fine again.
Didn't use the front derailleur spacer on these or the older style rings, the 50 tooth doesn't need the clearance.
Using Ultegra Di2 so there is no way to spread the derailleur cage at the rear to provide more clearance for the chain, but i'm puzzled why this would be so different, the rings look identical in shape.

The only difference i can see is the new rings don't use circlips to space the 38T chainring - but the instructions also don't have any mention of these so i'm assuming circlips are only for the older generation rings. This would give me an additional 1mm space between the chainrings, but i can't see how this affects my problem.

Not sure how to explain to my NYE guests what the bruises on my forehead are from :doh:

Thanks


Top
   
Posted: Tue Dec 31, 2013 2:49 am 


Top
   
 
PostPosted: Tue Dec 31, 2013 9:10 pm 
Offline

Joined: Wed Mar 31, 2010 3:37 am
Posts: 270
Can you post a pic? In the big ring looking down from the front, and in the small ring looking down from behind the derailleur.

Sent from my SPH-L900 using Tapatalk

_________________
S-WORKS Venge 2012 - 7.3 kg
Allez E5 - 7.3kg
DengFu FM086 - 8.3kg
CAAD9 - 6.32kg


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 2 posts ] 

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Attachment(s) R9100 power meter + Osymetric aero rings

in Road

nickyb

2

266

Mon Nov 06, 2017 1:23 am

ms6073 View the latest post

There are no new unread posts for this topic. FC-9000 crank with 56-44 rings or just the rings

in Road

lactatehate

1

404

Tue Apr 18, 2017 3:13 am

FIJIGabe View the latest post

There are no new unread posts for this topic. Canyon Ultimate CF SLX 2015 model

in Road

Timujin

4

842

Fri May 19, 2017 11:41 pm

totalcompactroad View the latest post

There are no new unread posts for this topic. Please help with scott foil model year

in Road

kelih

6

350

Fri Jun 23, 2017 3:11 pm

kelih View the latest post

There are no new unread posts for this topic. Which Model of Helmet Do You Wear and Why? How Frequently Do You Replace It?

[ Go to page: 1 2 3 4 5 6 ]

in Road

Squashednuts

80

6585

Tue Sep 12, 2017 3:27 pm

MXGimp View the latest post


All times are UTC+01:00


Who is online

Users browsing this forum: Bing [Bot], Greenduck, wheelbuilder and 33 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