Go Back  Bike Forums > Bike Forums > Road Cycling
Reload this Page >

RD Shimano 10 5701 compatibility

Notices
Road Cycling “It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway

RD Shimano 10 5701 compatibility

Old 10-11-21, 04:26 AM
  #1  
dirtydozen
Full Member
Thread Starter
 
Join Date: Mar 2017
Posts: 211
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 106 Post(s)
Likes: 0
Liked 8 Times in 6 Posts
RD Shimano 10 5701 compatibility

Hello,

I would like to replace my bent rear derailleur.
I bought my bike second hand from a bike shop, groupset is 105 5700.
I have a triple chainring (50/39/30) and a wide cassette (11-34).
Looking online it says it won't work with a cassette that goes above 28T or 30T with the long cage.
They also talk about a total capacity of 37T, which leaves me with 17T capacity on the rear, which is 11-28 and nothing more.

I mean surely i can't go wrong replacing the RD with the same model (right?), but on every website I go it says the RD is not compatible with my set up basically.
I've seen a comment from a guy that said he made it work with a 11-36.

Any ideas how to proceed ?
dirtydozen is offline  
Old 10-11-21, 10:27 AM
  #2  
shelbyfv
Expired Member
 
shelbyfv's Avatar
 
Join Date: Jun 2007
Location: TN
Posts: 11,431
Mentioned: 37 Post(s)
Tagged: 0 Thread(s)
Quoted: 3629 Post(s)
Liked 5,297 Times in 2,690 Posts
I'd get the RD-M591. It is inexpensive but not junk like some of the "A" named models. Current production and readily available. It's nominally 9 speed but will work fine with your 10 speed road group. It will give you big cog and chain wrap headroom you won't have with a direct replacement of your current RD.

shelbyfv is offline  
Old 10-11-21, 02:44 PM
  #3  
cxwrench
Senior Member
 
cxwrench's Avatar
 
Join Date: Jul 2013
Location: Nor-Cal
Posts: 3,767

Bikes: lots

Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 1958 Post(s)
Liked 2,932 Times in 1,489 Posts
^This^ Somewhere along the line someone with no clue worked on your bike. Put a 9 speed mtb derailleur on it like posted above and you won't have any problems.
cxwrench is offline  
Old 10-11-21, 09:14 PM
  #4  
KCT1986
Senior Member
 
Join Date: Jan 2016
Posts: 802
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 325 Post(s)
Liked 289 Times in 216 Posts
Is the rear derailleur too bent to determine if it will have clearance for the 34T cog?

Another things to consider is; even if shifting isn't great to the 34T, with a triple, will you really use the 34T much?

The total capacity only comes into play if you expect to use extreme gear positions. If you size the chain for big/big, you'll get a lot of sag in the small/smaller rear cogs but again is this a combo that you will really need?
KCT1986 is offline  
Old 10-11-21, 10:39 PM
  #5  
HTupolev
Senior Member
 
Join Date: Apr 2015
Location: Seattle
Posts: 4,261
Mentioned: 41 Post(s)
Tagged: 0 Thread(s)
Quoted: 1971 Post(s)
Liked 1,297 Times in 629 Posts
Originally Posted by dirtydozen
Any ideas how to proceed ?
All Shimano 9-speed derailleurs are compatible with their pre-2015 10-speed road drivetrains, so as people have suggested, I'd throw a 9-speed MTB derailleur at the problem and call it good.

The RD-M591 is probably the "highest-tier" widely-available model that would fit the bill.
The Alivio RD-T4000 "trekking" derailleur might also be a good option: it can often be sourced a bit cheaper, it's a smidge lighter, and it might fit the aesthetic of some road bikes a bit better.

There are various means of coaxing derailleurs designed for narrower-range drivetrains to work to some degree or another with wider-range drivetrains, but in this case a proper solution is readily available.

Last edited by HTupolev; 10-11-21 at 10:45 PM.
HTupolev is offline  
Old 10-12-21, 11:25 AM
  #6  
dirtydozen
Full Member
Thread Starter
 
Join Date: Mar 2017
Posts: 211
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 106 Post(s)
Likes: 0
Liked 8 Times in 6 Posts
Originally Posted by KCT1986
Is the rear derailleur too bent to determine if it will have clearance for the 34T cog?

Another things to consider is; even if shifting isn't great to the 34T, with a triple, will you really use the 34T much?

The total capacity only comes into play if you expect to use extreme gear positions. If you size the chain for big/big, you'll get a lot of sag in the small/smaller rear cogs but again is this a combo that you will really need?
I don't quite get the first question, but for the last 2, clearly no i'm not using that 34T cog ever.

Alright thanks for the tip guys. Never thought of putting a 9 speed RD, I thought i could only put 10 speed RD on a 10 speed cassette.
dirtydozen is offline  
Old 10-12-21, 11:37 AM
  #7  
Broctoon
Super-duper Genius
 
Broctoon's Avatar
 
Join Date: Aug 2016
Location: Muskrat Springs, Utah
Posts: 1,713
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 768 Post(s)
Liked 983 Times in 508 Posts
I want to piggy-back on this thread, with apologies to the OP. It sounds like you Shimano drivetrain gurus are saying something that will help with my current question/problem.

Can I use any modern Shimano 8, 9, or 10 speed road or mountain derailleur (like the one suggested above, for example) with a Dura Ace 10 speed indexed bar end shifter and 10 speed Shimano/SRAM cassette?

I know there are tons of websites that lay out the cross-compatibility or lack thereof for almost any combination a guy would want to try, but they have so much information it can be hard to pick through and find an answer on my particular setup.
Broctoon is offline  
Old 10-12-21, 12:15 PM
  #8  
KCT1986
Senior Member
 
Join Date: Jan 2016
Posts: 802
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 325 Post(s)
Liked 289 Times in 216 Posts
Originally Posted by dirtydozen
I don't quite get the first question, but for the last 2, clearly no i'm not using that 34T cog ever.

Alright thanks for the tip guys. Never thought of putting a 9 speed RD, I thought i could only put 10 speed RD on a 10 speed cassette.
The first question was meant to have you test to see if the RD has the ability to clear the 34T cog. Do it slowly while in the middle or small chainring just in case the chain was not sized to handle the large/large combo. The RD is rated to 32T with a triple per Shimano's spec and you're only 2T over. Depending on the specific dropout you have, it may have the range to clear the 34T. Additionally, cassettes are a wear item and will need replacement at some point. If you don't need a cassette with a 34T, when you do replace, get something smaller.

Saw your other thread, so after doing the new cable see if the RD can handle the 34T. While you have the cable out, also check the cable housing to verify that the housing ends are cleanly cut and the ferrules aren't damaged.

You may not have to replace the RD at all, especially if you don't use the 34T and don't plan to replace it with the same in the future.
KCT1986 is offline  
Old 10-12-21, 12:21 PM
  #9  
KCT1986
Senior Member
 
Join Date: Jan 2016
Posts: 802
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 325 Post(s)
Liked 289 Times in 216 Posts
Originally Posted by Broctoon
I want to piggy-back on this thread, with apologies to the OP. It sounds like you Shimano drivetrain gurus are saying something that will help with my current question/problem.

Can I use any modern Shimano 8, 9, or 10 speed road or mountain derailleur (like the one suggested above, for example) with a Dura Ace 10 speed indexed bar end shifter and 10 speed Shimano/SRAM cassette?

I know there are tons of websites that lay out the cross-compatibility or lack thereof for almost any combination a guy would want to try, but they have so much information it can be hard to pick through and find an answer on my particular setup.
With 10 speed DA shifters, you can use any road Shimano 8 (except RD-74xx, which is different),9,10 RD (except RD-4700, which is also different). For MTB RDs, only 8,9 RD will work. Shimano changed the MTB RD for 10 speed.
KCT1986 is offline  
Likes For KCT1986:
Old 10-12-21, 03:55 PM
  #10  
Broctoon
Super-duper Genius
 
Broctoon's Avatar
 
Join Date: Aug 2016
Location: Muskrat Springs, Utah
Posts: 1,713
Mentioned: 20 Post(s)
Tagged: 0 Thread(s)
Quoted: 768 Post(s)
Liked 983 Times in 508 Posts
Originally Posted by KCT1986
With 10 speed DA shifters, you can use any road Shimano 8 (except RD-74xx, which is different),9,10 RD (except RD-4700, which is also different). For MTB RDs, only 8,9 RD will work. Shimano changed the MTB RD for 10 speed.
Thank you! Very helpful. This is exactly what I needed.
Broctoon is offline  
Old 10-12-21, 04:24 PM
  #11  
KCT1986
Senior Member
 
Join Date: Jan 2016
Posts: 802
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 325 Post(s)
Liked 289 Times in 216 Posts
Originally Posted by Broctoon
Thank you! Very helpful. This is exactly what I needed.
Yes, lots of options will work. Just need to determine what capacity you need based on chainrings and cogs selection. Most of the current upper tier (DA, Ultegra, XTR, XT) RD are not compatible so you'll have to source something from a few year back, either used or NOS.
KCT1986 is offline  
Old 10-12-21, 06:54 PM
  #12  
HTupolev
Senior Member
 
Join Date: Apr 2015
Location: Seattle
Posts: 4,261
Mentioned: 41 Post(s)
Tagged: 0 Thread(s)
Quoted: 1971 Post(s)
Liked 1,297 Times in 629 Posts
Originally Posted by KCT1986
(except RD-4700, which is also different).
Not just 4700. Starting in 2015, any Shimano 10-speed road rear derailleurs match the new 11-speed road actuation. Currently that also includes the RD-RX400.
HTupolev is offline  
Old 10-12-21, 07:43 PM
  #13  
KCT1986
Senior Member
 
Join Date: Jan 2016
Posts: 802
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 325 Post(s)
Liked 289 Times in 216 Posts
Originally Posted by HTupolev
Not just 4700. Starting in 2015, any Shimano 10-speed road rear derailleurs match the new 11-speed road actuation. Currently that also includes the RD-RX400.
Yes, you're right about the RD-RX400, forgot about that one that was made to match up with the hydro braking shifters.

Otherwise, all of the new road upper tiers were going to 11 speed. For a few years, Shimano continued to sell the older 10 speed road lineup, (6700, 5700,4600{9S) series), which remained unchanged, with the older 1.7 actuation ratio.

Last edited by KCT1986; 10-13-21 at 01:16 AM. Reason: Corrected 4600
KCT1986 is offline  
Old 11-23-21, 07:24 AM
  #14  
dirtydozen
Full Member
Thread Starter
 
Join Date: Mar 2017
Posts: 211
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 106 Post(s)
Likes: 0
Liked 8 Times in 6 Posts
Originally Posted by KCT1986
The first question was meant to have you test to see if the RD has the ability to clear the 34T cog. Do it slowly while in the middle or small chainring just in case the chain was not sized to handle the large/large combo. The RD is rated to 32T with a triple per Shimano's spec and you're only 2T over. Depending on the specific dropout you have, it may have the range to clear the 34T. Additionally, cassettes are a wear item and will need replacement at some point. If you don't need a cassette with a 34T, when you do replace, get something smaller.

Saw your other thread, so after doing the new cable see if the RD can handle the 34T. While you have the cable out, also check the cable housing to verify that the housing ends are cleanly cut and the ferrules aren't damaged.

You may not have to replace the RD at all, especially if you don't use the 34T and don't plan to replace it with the same in the future.
Thank you for your inputs on both my threads, I'm was quite busy to find time to fix my whole drivechain, but now that I do your replies are very valuable
dirtydozen is offline  
Old 11-24-21, 12:33 PM
  #15  
biker128pedal
Senior Member
 
biker128pedal's Avatar
 
Join Date: Jan 2007
Location: Eastern VA
Posts: 1,700

Bikes: 2022 Fuel EX 8, 2021 Domane SL6, Black Beta (Nashbar frame), 2004 Trek 1000C for the trainer

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 259 Post(s)
Liked 439 Times in 261 Posts
I have a 5701 rear derailleur. Here is a picture of it and the box. As you can see the max cassette cog is 30T. I bet a 32 would work easily. A 34T maybe with the B screw all the way in. Otherwise a Wolf tooth thingy would make it work.

There are a few tables comparing derailleurs and pull ratio. I can t find mine but I bet a 9 speed mountain derailleur has the same ratio as a road 10s. I do remember the 10s Shimano road and mountain are different. One needs a cable adapter to alter the ratio.

Oh. I went with this to replace a 10s Ultegra short cage so I could go with a larger cassette. I have a 12-30 but will try a x-34 for some light rail trail touring. Should have sold all the Ultegra parts and wai D until summer for a new proper bike.




Last edited by biker128pedal; 11-24-21 at 12:38 PM.
biker128pedal is offline  

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 © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.