Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  

Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Thread Tools Search this Thread
Old 07-18-14, 11:44 AM   #1
Thread Starter
Join Date: Jan 2010
Location: NYC
Bikes: CAAD10, Jake the Snake
Posts: 29
Is a Dura Ace BR-7900 brake compatible with 105 ST-5700 shifters?

I have ST-5700 shifters on my bike and recently purchased a set of BR-7900 Dura Ace brakes. According to the Shimano website, they should work just fine. The entry for the shifters on their website states:

"Available in silver or black the new 105 levers are compatible with Ultegra 6700 and Dura-Ace 7900 brake arches"

I also found a compatibility chart floating around (below):

So, it would appear that this combination should work. My question is: Has anyone done this/does anyone have direct experience with this combination?

Many thanks!
Attached Images
File Type: jpg yU3Di.jpg (42.9 KB, 15 views)

Last edited by SpeedyP8; 07-18-14 at 11:49 AM. Reason: replacing the word "brifter" in the title...a silly word
SpeedyP8 is offline   Reply With Quote
Old 07-18-14, 06:48 PM   #2
Senior Member
Join Date: Apr 2009
Location: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
Posts: 29,274
Brakes and levers can me mixed freely with the caveat that some levers or brifters may be made to be compatible with V-brakers which require different cable pull. Those levers, common for upright bars, are considered special for drop bar levers and should be clearly so marked.

Otherwise, as Shimano says, you're good to go.
Chain-L site

An ounce of diagnosis is worth a pound of cure.

“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FBinNY is offline   Reply With Quote
Old 07-18-14, 08:51 PM   #3
Senior Member
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 28,687
Yes, they are compatible. Shimano has slightly increased the brake cable pull of their current brifters and also slightly increased the cable pull requirements of their road brake calipers for the most current groups. The 5700 and 7900 groups both include these changes and are compatible.
HillRider is offline   Reply With Quote
Old 07-22-14, 08:38 AM   #4
Thread Starter
Join Date: Jan 2010
Location: NYC
Bikes: CAAD10, Jake the Snake
Posts: 29
Thank you very much for the responses, I appreciate it and am happy to know that this combination will work well!
SpeedyP8 is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT -6. The time now is 06:04 AM.