Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Dura Ace 7900 shifter Compatability

Notices
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.

Dura Ace 7900 shifter Compatability

Old 11-02-10, 08:12 AM
  #1  
canflyboy 
Senior Member
Thread Starter
 
canflyboy's Avatar
 
Join Date: Aug 2008
Posts: 204
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Dura Ace 7900 shifter Compatability

Are the new 7900 series shifters compatable with 6600 rd and fd? I read that the new series can shift faster because in needs 20% less throw.

Thanks

Canflyboy
__________________


1970 Raleigh Tourist, 1972 Raleigh Sports, 1984 Miele Road Bike SS, 1985 Bianchi Nuovo Alloro, Opus Avro 29er, Jamis Sonik, Donnelly G//C , Bianchi San Jose, Cervelo SL-SLC, Cervelo S3 Di2, Ridley X-Bow Commuter and a wife that loves me!
canflyboy is offline  
Old 11-02-10, 10:33 AM
  #2  
Ingleside
MARGINALS
 
Join Date: Sep 2006
Location: San Francisco
Posts: 420

Bikes: 09 Tarmac Pro SL / Sunday BMX /

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
7900 only works with 7900, says the shimano rep i talked to last week.
Ingleside is offline  
Old 11-02-10, 09:54 PM
  #3  
canflyboy 
Senior Member
Thread Starter
 
canflyboy's Avatar
 
Join Date: Aug 2008
Posts: 204
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Thanks
__________________


1970 Raleigh Tourist, 1972 Raleigh Sports, 1984 Miele Road Bike SS, 1985 Bianchi Nuovo Alloro, Opus Avro 29er, Jamis Sonik, Donnelly G//C , Bianchi San Jose, Cervelo SL-SLC, Cervelo S3 Di2, Ridley X-Bow Commuter and a wife that loves me!
canflyboy is offline  
Old 11-03-10, 12:10 AM
  #4  
Bezalel
Senior Member
 
Join Date: Mar 2010
Location: City of Brotherly Love
Posts: 1,561

Bikes: Raleigh Companion, Nashbar Touring, Novara DiVano, Trek FX 7.1, Giant Upland

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 19 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
My understanding is that 7900 is compatible with 6700. 7800 is compatible with 6600 and 5600.
Bezalel is offline  
Old 11-03-10, 01:39 AM
  #5  
Chris_W
Likes to Ride Far
 
Chris_W's Avatar
 
Join Date: May 2007
Location: Switzerland
Posts: 2,281

Bikes: road, commuter/tourer, hardtail MTB, touring tandem, cargo, folder

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 20 Post(s)
Likes: 0
Liked 1 Time in 1 Post
The 7900 right shifter is compatible with almost all Shimano rear derailleurs, definitely including 6600.

The 7900 left shifter is only compatible with the newer road front derailluers (double cranksets only): 5700, 6700, and 7900. Not 6600 (although you could certainly try it with your 6600 and see how big of a problem it is before buying something new if needed).

The 7900 brake levers are not officially compatible with standard road brakes, they have a slightly different cable pull that is only matched by Shimano's new brakes (again, 5700, 6700, and 7900). However, the cable pull is different in different parts of the lever's motion, so if you set the brake so that the bite point (when it first contacts the rim) is not until the lever has moved some distance (but is still a safe distance from the bars), then they operate standard road brakes quite well (because in that part of the motion, the levers are pulling a similar amount of cable as intended for those brakes).
Chris_W is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Elvo
Road Cycling
37
01-11-18 09:10 PM
kflagg
Commuting
3
10-08-14 06:44 PM
Rob13
Road Cycling
39
10-21-11 09:52 PM
making
Forum Suggestions & User Assistance
5
06-11-08 05:25 AM

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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.