Shimano di2 1x setup for flat bar CX

Discuss light weight issues concerning mountain bikes & parts.

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markdjr
Posts: 46
Joined: Sun Sep 17, 2017 10:21 pm

by markdjr

I am trying to setup a di2 cx bike with flat bars and am trying to minimize cost/components. Does anyone know if it would be possible to use only a xtr rear derailleur, ew-90 junction box and sprint shifters or climbing shifter? Thanks for any info.

motorapido
Posts: 270
Joined: Fri Jul 30, 2010 7:08 pm

by motorapido

Yes it will work with either of those switch combinations as a setup (including the battery of course),
flat bar setups lend themselves to putting the battery in the bars which can help shorten the cable runs and junctions required, and you can add the Alfine shifter to the list of possible options.
I think BikeInn are doing XTR Di2 shifters at about half price at the moment which is about the same price as the sprint or climbing shifter normally go for, so might be worth checking out.

by Weenie


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ms6073
Posts: 2551
Joined: Fri Jul 23, 2004 8:24 pm
Location: Houston, Texas

by ms6073

markdjr wrote:
Mon Sep 24, 2018 9:56 pm
Does anyone know if it would be possible to use only a xtr rear derailleur, ew-90 junction box and sprint shifters or climbing shifter?
Assuming you do not want to do any Di2 hacking, either SW-R600 remote climbing shifters or the SW-R9150 satellite shifters will work. Sprint shifters will not work as they are simply momentary switches that must be interface with ST-9070 or ST-R9150 shifters.
Michael - The Anaerobic Threshold is neither...

markdjr
Posts: 46
Joined: Sun Sep 17, 2017 10:21 pm

by markdjr

Thanks for the replies. The xtr shifter requires the xtr head unit right? I was hoping to use the ew-90 in lieu of the xtr headunit. Understood with the sprint shifters. I am comfortable hacking the climbing shifter. Good call on the battery in the bars!

motorapido
Posts: 270
Joined: Fri Jul 30, 2010 7:08 pm

by motorapido

The XTR shifter will work with the EW-90, i have tried it so can confirm that it will work.

Jowwy
Posts: 68
Joined: Thu Jun 09, 2016 6:47 pm

by Jowwy

I have the battery in the bars of my flat bar di2...... done it about 9mths ago. Works a treat

markdjr
Posts: 46
Joined: Sun Sep 17, 2017 10:21 pm

by markdjr

motorapido wrote:
Tue Sep 25, 2018 6:47 am
The XTR shifter will work with the EW-90, i have tried it so can confirm that it will work.
Thanks for the heads up. Glad to know this is an option. I think I may try the climber switch hack and use the little momentary switches under the flat bar grips. Should be pretty stealth!

by Weenie


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