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PostPosted: Mon Apr 02, 2012 6:08 pm 
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Joined: Mon Mar 12, 2012 4:43 pm
Posts: 333
Layback wrote:
The shifting is money on my stand - totally dialed in. I can't make it jump and I can't make the chain rub (even with completely unreasonable shifting). But when I throw it on the trainer it all goes to shit. It won't shift to the big ring. So then I loosen the H Limit screw and increase tension until it shifts but then it's back to throwing the chain. WTF? Does anyone have any idea why this could be?

Maybe it's back to looking for a DA 7800?


This conclusion makes me sad as I am about to set up with Red shifters, Force FD, and Rival RD to Shimano cassette/chain and SL-K crank ... I guess I will have something to report later


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Posted: Mon Apr 02, 2012 6:08 pm 


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PostPosted: Mon Apr 02, 2012 9:21 pm 
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Joined: Mon Nov 17, 2008 9:56 pm
Posts: 282
just finished my first ride on a full 2011 SRAM Red Black setup, but with the 2012 Yaw FD installed (switched from the 2011 Red FD yesterday night), and the results are amazing. I only get chain rub in the 34/11, and the shifting is a huge improvement over the old version. I wasn't unhappy with the old, but am very happy with the Yaw FD.

The instructions that come with the FD are very clear, and really helped get it dialed in perfectly.


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PostPosted: Mon Apr 02, 2012 9:26 pm 
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Joined: Mon Jan 24, 2011 8:09 pm
Posts: 918
Sram Red Steel cage? That is what I'm using now. Had a Red Titanium previously. Shifting is much crisper, particularly on the upshift to the big ring. I run Qrings also..so things aren't always going to be perfect with those anyway, it's not like I'm shifting up/down every 5 seconds...so no big deal, just think ahead 5 seconds.


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PostPosted: Mon Apr 02, 2012 10:39 pm 
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Joined: Mon Nov 17, 2008 9:56 pm
Posts: 282
The 2011 sram red fd was steel cage (after warrantying my only ti cage one, i have only used the steel cage flavor).


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PostPosted: Tue Apr 03, 2012 2:35 am 
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Joined: Sat Mar 31, 2012 5:02 am
Posts: 11
Thanks again for all of the info. I ordered a 7800 DA yesterday, took the Force FD back and reinstalled the Red Ti FD for now.

Just out of curiosity has anyone who has ever faced this problem:

1) Gotten SRAM to replace the Red Ti FD with a Red Steel FD free of charge?
2) Had success by switching to the Red Steel FD.

After switching back to the Ti FD shifting is better/crisper than with Force with the exception of chain rub in big chainring/high gear or throws in big chainring/high gear if I adjust the HL screw to take away the rub.

_________________
2011 Cervélo RS - SRAM Red


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PostPosted: Tue Apr 03, 2012 2:20 pm 
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Joined: Mon Nov 17, 2008 9:56 pm
Posts: 282
I had my ti cage red fd replaced when it stopped working well, they sent a steel cage (called it the armstrong edition way back when). The steel cage version shifting was as good as the force.


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PostPosted: Tue Apr 03, 2012 10:23 pm 
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Joined: Sat Jan 08, 2011 10:33 pm
Posts: 79
Could do with some clear help on this one... Just found this post and wasn't aware of this issue.
I have SRAM red black ready to install on my caad10
I've got a SRAM red ti derailleur and a SRAM red steel dérailleur which do I install? Or do I buy a 2012?


Sent from my iPad using Tapatalk HD

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Caad9 BBQ Durace7800 build
http://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=82445#p721875


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PostPosted: Wed Apr 04, 2012 1:12 am 
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Joined: Mon Nov 17, 2008 9:56 pm
Posts: 282
sram red ti 8/10 initially fading to 5/10 over 3k miles
sram red steel 9/10 without fade
sram red yaw 2012 10/10 (best shifting + wider range of gear combinations without chain rub).

ratings assume all other components are sram red 2011 or earlier.


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PostPosted: Wed Apr 04, 2012 1:44 am 
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Joined: Sat Jan 08, 2011 10:33 pm
Posts: 79
Thanks motor. I'm going to take ur advice and buy a yaw.

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Caad9 BBQ Durace7800 build
http://weightweenies.starbike.com/forum/viewtopic.php?f=10&t=82445#p721875


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PostPosted: Wed Apr 04, 2012 5:56 pm 
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Resident master of GIF

Joined: Mon Jul 18, 2011 2:44 am
Posts: 2768
it's all in the setup. finicky yes, but force FD works the best (if staying in the sram family). i wont go and debate sram vs shimano vs campy functionality, but both of my bikes on red rings and force steel fd cage, they shift fine while on the road.

shifting from small to big ring under massive load , ie going up a hill or on the trianer even (i've found) just doesn't happen, but i've never found in either of those situations honestly. only way to solve the under load shifting problem is electric.

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PostPosted: Thu Apr 05, 2012 12:01 pm 
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Joined: Mon Sep 26, 2011 1:40 pm
Posts: 62
Location: Port Elizabeth , South Africa
Image

I placed a thin washer here to widen the cage at the lower part (about a mm or less) and have no chain rub on any gear combination using the old 2011 red shifters and the force derailleur

_________________
Scott Addict (7,19kg) (15,8lbs)


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PostPosted: Thu Apr 05, 2012 6:25 pm 
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Joined: Mon Mar 12, 2012 4:43 pm
Posts: 333
@robsc ... thanks for the tip :thumbup:


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