Go Back  Bike Forums > Bike Forums > General Cycling Discussion
Reload this Page >

Is the 5600 series Shimano 105 RD compatible with 5700 series?

General Cycling Discussion Have a cycling related question or comment that doesn't fit in one of the other specialty forums? Drop on in and post in here! When possible, please select the forum above that most fits your post!

Is the 5600 series Shimano 105 RD compatible with 5700 series?

Old 01-27-19, 12:21 PM
Senior Member
Thread Starter
Join Date: Apr 2008
Location: Salt Lake City, UT (Formerly Los Angeles, CA)
Posts: 1,003

Bikes: 2008 Cannondale Synapse -- 2014 Cannondale Quick CX

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 168 Post(s)
Likes: 0
Liked 16 Times in 10 Posts
Is the 5600 series Shimano 105 RD compatible with 5700 series?

My road bike has a Shimano 105 "GS" medium cage rear derailleur from the 5600 series. The maximum cassette size for the 5600 series is 27t. However, I've been riding for about a year with an 11-28t rear cassette. The shifting is ok but has never been great. I'm wondering if I could swap over to the 5701GS rear derailleur which has a 30t max for the rear cassette. Would this swap require changing the shifter also?

The motivation for wanting to do this is that currently I have to tighten the b-screw almost all the way down to accommodate that 28t cassette, and this has made shifting at the small end of the cassette less reliable. It seems like swapping over to a derailleur that is designed for up to 30T would help improve shifting throughout the range when using an 11-28 cassette (and who knows, maybe at some point I'll get a 30t sprocket in back).
daoswald is offline  
Old 01-27-19, 01:10 PM
Senior Member
alcjphil's Avatar
Join Date: Jun 2002
Location: Montreal, Quebec
Posts: 2,927
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 536 Post(s)
Liked 12 Times in 11 Posts
I am surprised that your 5600 GS derailleur has trouble with a 28 tooth large cog. A one tooth deviation from Shimano's stated capacity should not make a huge difference in shifting performance. What sort of crank setup do you have? That said, a 5701GS rear derailleur would work with your shifters. Another possible solution would be a "9 speed" Shimano mountain bike derailleur. That is what I have on my touring bike. It give me the option to be able to use a much larger cassette than the 11-28 I currently have
alcjphil is online now  
Old 01-27-19, 01:15 PM
Senior Member
BlazingPedals's Avatar
Join Date: Dec 2004
Location: Middle of da Mitten
Posts: 10,918

Bikes: Trek 7500, RANS V-Rex, Optima Baron, Velokraft NoCom, M-5 Carbon Highracer, homebuilt recumbent

Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 898 Post(s)
Liked 16 Times in 13 Posts
I could probably look it up if I weren't so lazy, but does Shimano make a 5703 derailleur anymore?
BlazingPedals is offline  
Old 01-27-19, 02:07 PM
Senior Member
Join Date: May 2012
Location: western Massachusetts (greater Springfield area)
Posts: 578

Bikes: Velosolex St. Tropez, LeMond Zurich (spine bike), Rotator swb recumbent

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 17 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by BlazingPedals View Post
I could probably look it up if I weren't so lazy, but does Shimano make a 5703 derailleur anymore?
No, but they are available on EBay
MikeWMass is offline  
Old 01-27-19, 03:59 PM
Senior Member
Maelochs's Avatar
Join Date: Oct 2015
Posts: 11,517

Bikes: 2015 Workswell 066, 2014 Dawes Sheila, 1983 Cannondale 500, 1984 Raleigh Olympian, 2007 Cannondale Rize 4, 2017 Fuji Sportif 1 LE

Mentioned: 135 Post(s)
Tagged: 0 Thread(s)
Quoted: 5444 Post(s)
Liked 107 Times in 71 Posts
Derailleurs aren't that picky. Some newer ones, designed for 10- or 11-speed, might balk at a 6-7-8-speed chain ... but otherwise, they just swing as far as the cable is pulled. Up to 9-speed (as far as i recall) you can swap MTB and road rear derailleurs and road shifters will work fine. And up to 5800, I think you can mix and match anything road. The derailleur doesn't know ho many ratchet-stops the shifter has, just how far the cable is pulled.
Maelochs is offline  
Related Topics
Thread Starter
Last Post
Northeast Rides and Events
03-19-18 02:31 PM
Jax Rhapsody
Mountain Biking
03-04-15 06:35 AM
Southeast Regional Rides and Events
03-21-12 09:13 AM
Road Cycling
10-16-04 06:54 PM
Training & Nutrition
02-10-03 09:29 PM

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.