XT M8000 Rear Derailleur with STI Shifters?
03-19-19, 02:15 AM
#1
Full Member
Thread Starter
XT M8000 Rear Derailleur with STI Shifters?
I have a perfectly functional mechanical XT Rear Derailleur I want to put on a drop-bar bike, but I'm not sure about shifting. Can they be shifted via current STI levers of any product line (105/Ultegra/DA)?
03-19-19, 04:55 AM
#2
Senior Member
Join Date: Jun 2015
Location: South Korea
Posts: 694
Bikes: Merida Speeder
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 207 Post(s)
Liked 116 Times
in
85 Posts
Have a look at the Wolftooth Tanpan (https://www.wolftoothcomponents.com/products/tanpan) to allow you to shift the XT derailleur with 11 speed STI levers.
03-19-19, 07:09 AM
#3
Senior Member
Join Date: Sep 2008
Location: NE Tennessee
Posts: 917
Bikes: Giant TCR/Surly Karate Monkey/Foundry FireTower/Curtlo Tandem
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 169 Post(s)
Liked 83 Times
in
61 Posts
The key thing to look for is "Dyna-Sys". Dyna-Sys shifters and rear derailleurs have a different pull amount that regular Shimano groups.
I use mountain Deore XT derailleurs on my tandems with standard road shifters regularly.
As for 11 speed components, I do not know.
I use mountain Deore XT derailleurs on my tandems with standard road shifters regularly.
As for 11 speed components, I do not know.
03-19-19, 10:54 AM
#4
Senior Member
Join Date: Nov 2016
Location: SoCal
Posts: 488
Bikes: 2014 Bruce Gordon Rock&Road, 1995 Santana Visa Tandem, 1990 Trek 520, 2012 Surly LHT
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 210 Post(s)
Likes: 0
Liked 42 Times
in
35 Posts
Originally Posted by ADAP7IVE
I have a perfectly functional mechanical XT Rear Derailleur I want to put on a drop-bar bike, but I'm not sure about shifting. Can they be shifted via current STI levers of any product line (105/Ultegra/DA)?
03-19-19, 10:56 AM
#5
Full Member
Thread Starter
Originally Posted by Eggman84
Short answer is no. Starting with 10 speed MTB drivetrains (labeled as DynaSys), Shimano changed the cable pull such that the MTB and road shifters and RDs no longer work together. There are solutions including I believe Microshift shift levers. Theirs a lot written out there on compatibility, you just need to search for it. And hope what you want to do someone has already tried and documented. Best of luck.
03-19-19, 11:10 AM
#6
Occam's Rotor
Join Date: Jul 2013
Posts: 7,248
Mentioned: 61 Post(s)
Tagged: 0 Thread(s)
Quoted: 2366 Post(s)
Liked 2,331 Times
in
1,164 Posts
I use this derailleur with Microshift bar end shifters on a drop-bar bike. I'm not sure if that helps.
03-19-19, 07:31 PM
#7
Full Member
Thread Starter
Originally Posted by wgscott
I use this derailleur with Microshift bar end shifters on a drop-bar bike. I'm not sure if that helps.
03-19-19, 07:32 PM
#8
Full Member
Thread Starter
Originally Posted by bakerjw
The key thing to look for is "Dyna-Sys". Dyna-Sys shifters and rear derailleurs have a different pull amount that regular Shimano groups.
I use mountain Deore XT derailleurs on my tandems with standard road shifters regularly.
As for 11 speed components, I do not know.
I use mountain Deore XT derailleurs on my tandems with standard road shifters regularly.
As for 11 speed components, I do not know.
03-20-19, 02:58 AM
#9
Senior Member
Join Date: Feb 2018
Posts: 760
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 324 Post(s)
Liked 394 Times
in
241 Posts
I use Gevenalle shifters with T6000 Deore 10-speed Dynasis derailleur, there are 11 speed versions too:
https://www.gevenalle.com/product/gx/
Basically these are Microshift bar end shifters grafted on top of Tektro brake levers. Rode some 4000-5000km on them by now, they work like a charm. I've been in a crash so it's a bit scuffed up, and I had to replace the lever hood (which they sent free of charge, amazing customer service), shifting still works a treat regardless (I actually was 300km from home so I duct-taped it and it brought me home, eh). Super satisfied with how it works, tbh. The front derailleur is friction operated which works well since you can trim it, so you can have no rubbing even with a 3x, which I run, rear is indexed.
The only real con compared to STI levers is that you can't really shift from the drops, only from the hoods.
https://www.gevenalle.com/product/gx/
Basically these are Microshift bar end shifters grafted on top of Tektro brake levers. Rode some 4000-5000km on them by now, they work like a charm. I've been in a crash so it's a bit scuffed up, and I had to replace the lever hood (which they sent free of charge, amazing customer service), shifting still works a treat regardless (I actually was 300km from home so I duct-taped it and it brought me home, eh). Super satisfied with how it works, tbh. The front derailleur is friction operated which works well since you can trim it, so you can have no rubbing even with a 3x, which I run, rear is indexed.
The only real con compared to STI levers is that you can't really shift from the drops, only from the hoods.
03-20-19, 07:05 AM
#10
Senior Member
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 33,540
Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!
Mentioned: 39 Post(s)
Tagged: 0 Thread(s)
Quoted: 1964 Post(s)
Likes: 0
Liked 979 Times
in
676 Posts
Originally Posted by Branko D
I use Gevenalle shifters with T6000 Deore 10-speed Dynasis derailleur, there are 11 speed versions too:
https://www.gevenalle.com/product/gx/
Basically these are Microshift bar end shifters grafted on top of Tektro brake levers. Rode some 4000-5000km on them by now, they work like a charm. I've been in a crash so it's a bit scuffed up, and I had to replace the lever hood (which they sent free of charge, amazing customer service), shifting still works a treat regardless (I actually was 300km from home so I duct-taped it and it brought me home, eh). Super satisfied with how it works, tbh. The front derailleur is friction operated which works well since you can trim it, so you can have no rubbing even with a 3x, which I run, rear is indexed.
The only real con compared to STI levers is that you can't really shift from the drops, only from the hoods.
https://www.gevenalle.com/product/gx/
Basically these are Microshift bar end shifters grafted on top of Tektro brake levers. Rode some 4000-5000km on them by now, they work like a charm. I've been in a crash so it's a bit scuffed up, and I had to replace the lever hood (which they sent free of charge, amazing customer service), shifting still works a treat regardless (I actually was 300km from home so I duct-taped it and it brought me home, eh). Super satisfied with how it works, tbh. The front derailleur is friction operated which works well since you can trim it, so you can have no rubbing even with a 3x, which I run, rear is indexed.
The only real con compared to STI levers is that you can't really shift from the drops, only from the hoods.
The Gevenalle system is available in 9,10 and 11-speed and in both road and Dyna-Sys format and for both cable rim brakes and cable and hydraulic disc brakes and, incidentally, for Shimano IGH hubs. I just checked their web site and they now have brifters for Shimano and SRAM 1x12 systems.
A very versatile system that rugged, durable and less expensive than mid and high line STIs. It's also cheaper to upgrade. For example if I wanted to go to 11-speed on one of my bikes all I would need for shifting is the right side lever, not the entire brifter.
