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PostPosted: Wed Sep 13, 2017 3:08 am 
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Joined: Mon Jul 26, 2004 1:06 pm
Posts: 1094
A busted right hand means left hand shifting is needed. Di2 is the only option. I've ridden SRAM for 15 years and haven't kept up to date with Shimano. Can anyone tell me if this will work or if I need more parts/wires/connections/junction boxes?

SM-EW90-A junction box under stem
SW-M8050 left hand shifter connected to SM-EW90-A junction box at stem with EW-SD50 wire
BT-DN110 battery in steerer tube connected to SM-EW90-A junction box at stem with EW-SD50-I wire
RD-M8050-GS rear derailleur connected to SM-EW90-A junction box at stem with EW-SD50-I wire
SM-BCR1 battery charger and SM-BCC1 charger cord

Will that setup still allow wireless configuration from an ipad with e-tube software?
Will I be able to charge the system through SM-EW90-A junction box at the stem?
Will I be able to put the system into adjustment mode at SM-EW90-A junction box at stem?

I want to keep it as minimal as possible and don't want a display.


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Posted: Wed Sep 13, 2017 3:08 am 


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PostPosted: Wed Sep 13, 2017 6:58 am 
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Joined: Fri Jul 30, 2010 7:08 pm
Posts: 241
Grover,
Yes it will work, and you can charge and micro adjust with the SM-EW90-A, only bit i'm not sure on is the Ipad setup.
Although some setup can be done with the SM-BCR1 battery charger,


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PostPosted: Wed Sep 13, 2017 7:04 am 
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Joined: Mon Jul 26, 2004 1:06 pm
Posts: 1094
Excellent.

It looks like SM-BCR2 is a better choice for the charger.

I'll keep investigating the wireless capabilities. I suspect I'll also need a wireless unit in the system like EW-WU111. In that case I'm probably better off just buying the MT800 display which accounts for the junction box and the wireless unit. Can anyone shed any light on that?


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PostPosted: Wed Sep 13, 2017 7:32 am 
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Joined: Tue Jan 09, 2007 5:04 pm
Posts: 339
Yes, you need a EW-WU111 unit (aka D-Fly), otherwise it will not communicate wirelessly to for instance an iPad or a cycling computer.

_________________
Most "innovations" in cycling are solutions for non-existing problems.


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PostPosted: Wed Sep 13, 2017 9:03 am 
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Posts: 1094
But if I got MT800 display instead of SM-EW90-A as the 'junction box' then I wouldn't need the EW-WU111 as the MT800 does wireless communication itself?


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PostPosted: Sun Nov 12, 2017 4:32 am 
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Joined: Wed Mar 19, 2008 8:38 pm
Posts: 31
Yes. The MT800 Screen contains the BlueTooth chip needed for wiresless config.

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Eric in San Carlos, CA


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PostPosted: Sun Nov 12, 2017 4:36 am 
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Joined: Wed Mar 19, 2008 8:38 pm
Posts: 31
This is my formula:

SC-M9050 - screen
SW-R600 - climbing switch
SM-BMR1 - i pull the chip out and tape it to the frame
Battery - anything you can find on Ebay for $6 connected to the chip from the BMR1
RD-M9050 - rear der
FD-M9070 (2x) or FD-M9050 (3x)

This setup is much cheaper but I don't have wireless configuration and I don't care. I have the SM-PCE1 hooked to a computer for that.

_________________
Eric in San Carlos, CA


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PostPosted: Thu Nov 16, 2017 2:27 am 
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Joined: Sun Nov 29, 2015 5:47 pm
Posts: 55
grover wrote:
BT-DN110 battery in steerer tube


My concern would be 1. Having enough room in the steerer tube, and 2. Getting the E-TUBE cable in there past the plug/star nut.


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PostPosted: Fri Nov 17, 2017 1:15 am 
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Joined: Tue Sep 30, 2014 6:35 pm
Posts: 10
IrrelevantD wrote:
grover wrote:
BT-DN110 battery in steerer tube


My concern would be 1. Having enough room in the steerer tube, and 2. Getting the E-TUBE cable in there past the plug/star nut.



Trickstuff Deckele top cap and "not a star-nut" (weighs 12 grams)


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PostPosted: Fri Nov 17, 2017 12:43 pm 
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Joined: Sun Nov 29, 2015 5:47 pm
Posts: 55
4536 wrote:
IrrelevantD wrote:
grover wrote:
BT-DN110 battery in steerer tube


My concern would be 1. Having enough room in the steerer tube, and 2. Getting the E-TUBE cable in there past the plug/star nut.



Trickstuff Deckele top cap and "not a star-nut" (weighs 12 grams)


Ok, after some looking on the inter webs, I’m fascinated. I didn’t even know that steerer battery mounting was a thing. There are a few companies selling similar. I find PRO’s solution with the integrated battery mount/expander plug/top cap particularly intriguing.

Won’t help me now, and I’m still not sure if I have a long enough steerer, but definitely would have made the buildup easier.


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Posted: Fri Nov 17, 2017 12:43 pm 


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