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Will Di2 EW-WU111 wireless unit work inside

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Will Di2 EW-WU111 wireless unit work inside

Old 02-10-21, 11:01 AM
  #1  
dstke
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Will Di2 EW-WU111 wireless unit work inside

Accidentally posted before finishing. (Is there a way to delete a post?)

Anyway question is will the unit work inside a Ti seat tube? Was planning to update firmware and configure data screens and shifter hood buttons prior to inserting into seat tube but will the metal prevent communication of gear and battery information? I'm thinking probably yes. In which case in order to hide the wireless unit best place would be inside handlebars.

Last edited by dstke; 02-10-21 at 11:08 AM. Reason: Accidentally posted before finished
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Old 02-10-21, 11:06 AM
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So if it does interfere you wouldn't purchase it? I'd just try and see, regardless of others experience. Though I'd think metal of any sort will be a bigger issue than if this was a carbon bike.

I'm planning on getting one too and was just going to do my own experimentation with placement.


edit.... seems like there is or was a check box or function in the advanced edit to delete a post. It was very obscure and not very noticeable. Not sure if starter post for threads were/are different.

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Old 02-10-21, 11:14 AM
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Mine has worked in the past a few times but really isn't reliable. I wouldn't do it honestly and I wish I hadn't spent that money. I may end up moving it to the rear derailleur or put it near the bars when I re-wrap and add the bar end Junction A unit. I do have an older phone so that could be it as well but I have tried it with other folks phones and it doesn't like to work as often.
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Old 02-10-21, 11:55 AM
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Just splice it in up front, that's what I did on my Ti bike. You may have to unwrap the bars to clean up the wiring after.
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Old 02-10-21, 01:16 PM
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That's the plan.
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Old 02-14-21, 01:58 PM
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Mine is right here:

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Old 02-14-21, 07:38 PM
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Mine is in the downtube of a steel frame and seems to work fine...Though I just moved it there and haven't actually ridden outdoors with it, because of the weather.
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Old 02-14-21, 09:05 PM
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Originally Posted by dstke View Post
Accidentally posted before finishing. (Is there a way to delete a post?)

Anyway question is will the unit work inside a Ti seat tube? Was planning to update firmware and configure data screens and shifter hood buttons prior to inserting into seat tube but will the metal prevent communication of gear and battery information? I'm thinking probably yes. In which case in order to hide the wireless unit best place would be inside handlebars.
I would be very surprised if it worked flawlessly. RF does not transmit through metal. It goes around it, a tube may act like a waveguide though and a signal may be directed it the right direction though but probably just by luck.
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Old 02-16-21, 10:00 AM
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Originally Posted by TerryDi2C View Post
Mine is right here:

Wait...maybe I'm having a brain fart, but what is the WU111 connected to at the bar end? It's not just sitting free is it? I thought it had to be inline.
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Old 02-16-21, 10:19 AM
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Yes it is... and no, it does not have to be inline. Just like any Di2 component - as long as it is somehow connected, it'll work
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Old 02-16-21, 10:56 AM
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Originally Posted by TerryDi2C View Post
Yes it is... and no, it does not have to be inline. Just like any Di2 component - as long as it is somehow connected, it'll work
Great to know...thank you for the education.
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