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  [ 18 posts ] 
Go to page Previous  1, 2
Author Message
PostPosted: Thu Oct 24, 2013 4:19 pm 
Offline
User avatar

Joined: Sat Dec 06, 2008 10:14 am
Posts: 957
Location: Sweden
Actually with careful setup (cable tension, derailleur alignment, limit screws) you can get the 7900 FD/5700 shifters combo to shift without the trim function on the big ring (done properly, the shifter won't even engage the outer trim position) and also use the whole cassette with only the inner trim position on the small ring. That way you will actually never use any trim and can use the full cassette without rub on both front rings.

Ofcourse you will still have to shift by/pass the small ring outer trim position when going from small to big ring, but I would say you barely notice that anyway. I've done this on both a Sram Red and Shimano Tiagra 4500 crankset with several different types of chainrings.

_________________
Roadbike
Planet X Stealth w/ drop bars

Mountainbike
Van Nicholas Zion Ti


Top
 Profile  
 
Posted: Thu Oct 24, 2013 4:19 pm 


Top
  
 
PostPosted: Fri Oct 25, 2013 1:08 am 
Offline

Joined: Sun May 16, 2010 7:28 pm
Posts: 585
sanddancer wrote:
7900 and 5700/6700 are NOT. At least not fully. Front mech pull ratio is way off and (IIRC) using 7900 shifters with a 5700 mech means you need to put a stupid amount of force through the lever to get it to shift.

I got 7900 FD with 6700 shifters... Is that why I'm always rubbing 1-2 gears when cross-chained? I "upgraded" to 7900 and moved the 6700 FD to my TT bike..

davidalone wrote:
( you CAN however, run a sram shifter with a shimano front derailleur or a shimano shifter with a sram front derailleur.)
brakes between sram and shimano are cross compatible as well.

I assume this DOES NOT apply for SRAM Red 10s with the new Yaw FD? I think I'm going to change out the whole shifting system to SRAM soon, the rear shifting doesn't feel crisp at all. The lever action just feels loose and plasticky.


Top
 Profile  
 
PostPosted: Fri Oct 25, 2013 5:51 am 
Offline

Joined: Fri Feb 10, 2012 4:27 pm
Posts: 271
I've not used a yaw FD ( and to be honest, I wouldn't. ) so I can't comment. but Velonews have tried it out here:

http://velonews.competitor.com/2012/03/ ... ity_209270

and if yaw works with older shifters I don't see why i wouldnt work with shimano shifters. not perfectly, but there you go.

my experience with sram is that you either like it or hate it. the 'plasticky' shifting is something I actualy like- it's solid and instantaneous, sort of like a manual gearbox on a racing car. it feels solid and you KNOW you've shifted. shimano shifts nice, but it's sometimes a little too smooth.

that being said I hate sram for other reasons, so I'm going back to shimano on the next change.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 18 posts ] 
Go to page Previous  1, 2


Who is online

Users browsing this forum: BeeBee30, Faceman78, Genius10, Google [Bot], L84AD8, russianbear, zander and 40 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. Ultegra 6870 & 10 speed backwards compatibility?

[ Go to page: 1, 2 ]

in Road

jockster

27

4041

Mon Dec 09, 2013 2:58 am

BikeTart View the latest post

There are no new unread posts for this topic. Ultegra Di2 Lifespan?

[ Go to page: 1, 2 ]

in Road

allenpg

16

2321

Mon Feb 03, 2014 8:12 pm

Slack View the latest post

There are no new unread posts for this topic. Ultegra Di2 6770

in Road

andyw396

1

362

Tue Apr 08, 2014 2:16 pm

deltree View the latest post

There are no new unread posts for this topic. 3T Difflock Compatibility

in Road

Stolichnaya

8

556

Mon May 05, 2014 8:39 pm

CBJ View the latest post

There are no new unread posts for this topic. Di2 cassette compatibility

in Road

Tricky1

5

459

Sun Jul 06, 2014 5:10 pm

CharlesM View the latest post


It is currently Tue Jul 29, 2014 8:05 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