Dead Di2

Discuss light weight issues concerning road bikes & parts.
CerveloMikey
Posts: 80
Joined: Tue Sep 16, 2008 11:20 pm
Location: Burbank, CA

by CerveloMikey

Buy the System Checker! It is on sale for $215!


http://www.realcyclist.com/shimano-di2- ... erralID=NA
R2.5 / R3 / S-Works 29er (20 lbs) / S-Works SL4 Di2 (14.7 lbs)

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horse
Posts: 148
Joined: Sun Oct 09, 2011 1:09 pm

by horse

artray wrote:D12 is becoming self-aware and its plan to take over the worlds main frames has begun right here on the WW sight with Pluggers bike.


No kidding! Amateur cyclist was assassinated by Di2. Bike is awol and nowhere to be found.

Plugger14
Posts: 32
Joined: Mon Jun 28, 2010 10:28 am

by Plugger14

Well there is a happy ending to this story, at least for the true believers out there.

So I decided that the issue must be with the cable/control box that connects the wiring harness to the levers so I decided to take this off and try it on another Di2 bike to prove this point. To do this I first needed to remove the bar tape and after doing that I could get to the spot where the cable is attached to the lever. The first thing I notice is that the connector into the RH lever is very easy to pull out, not like any of the other junctions. And the same thing with the LH lever and I thought that this was a little odd. So I played around with the cable into the LH lever and hey presto It works but as soon as I take pressure off the connector it stops working. So after a little googling I found out that you need to push the connector in to lever with the thin end of the tool that comes with Di2 and that it should click in hard to the lever and sure enough when I get the tool and pushed hard the connector engages totally differently. It's now very secure and I can not take it out by hand. And sure enough the lever now works perfectly.

So after all of that it was an installation issue, the guys who installed it (it was the 2nd Di2 that they had done at the time) did not know/forgot to install it correctly.

The strange thing is that it was installed over two years ago and it has not missed a beat during that time and I have no idea what would have caused both lever connections to fail at the one time.

So to all of you that were predicting that this was the beginning of the end for Di2 I am truly sorry.

goodboyr
Posts: 1388
Joined: Wed Jan 10, 2007 10:56 pm
Location: Canada

by goodboyr

Plugger14 wrote:Well there is a happy ending to this story, at least for the true believers out there.

So I decided that the issue must be with the cable/control box that connects the wiring harness to the levers so I decided to take this off and try it on another Di2 bike to prove this point. To do this I first needed to remove the bar tape and after doing that I could get to the spot where the cable is attached to the lever. The first thing I notice is that the connector into the RH lever is very easy to pull out, not like any of the other junctions. And the same thing with the LH lever and I thought that this was a little odd. So I played around with the cable into the LH lever and hey presto It works but as soon as I take pressure off the connector it stops working. So after a little googling I found out that you need to push the connector in to lever with the thin end of the tool that comes with Di2 and that it should click in hard to the lever and sure enough when I get the tool and pushed hard the connector engages totally differently. It's now very secure and I can not take it out by hand. And sure enough the lever now works perfectly.

So after all of that it was an installation issue, the guys who installed it (it was the 2nd Di2 that they had done at the time) did not know/forgot to install it correctly.

The strange thing is that it was installed over two years ago and it has not missed a beat during that time and I have no idea what would have caused both lever connections to fail at the one time.

So to all of you that were predicting that this was the beginning of the end for Di2 I am truly sorry.


Great news. Defcon 1 cancelled.

Tokyo Drifter
Posts: 480
Joined: Sat Jun 06, 2009 7:28 am

by Tokyo Drifter

So the moral of the story is that a middle aged guy thought an appliance was broken, and then realised that it just wasn't plugged in properly.

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CBJ
Posts: 1060
Joined: Tue Feb 02, 2010 4:22 pm
Location: Brooklyn

by CBJ

If only we could eliminate human error :P

krusty
Posts: 90
Joined: Thu Dec 08, 2005 12:48 am

by krusty

Glad this has not turned into a 'mystery electrical failure' requiring replacement. If the systems continue to prove reliable, I may just have to get one for my next build.

Plugger14
Posts: 32
Joined: Mon Jun 28, 2010 10:28 am

by Plugger14

Tokyo Drifter wrote:So the moral of the story is that a middle aged guy thought an appliance was broken, and then realised that it just wasn't plugged in properly.


Sounds like a response from my wife :)

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mlchang
Posts: 142
Joined: Tue Dec 15, 2009 3:09 pm

by mlchang

So even incorrectly installed Di2 worked properly for 2 years! That seems pretty awesome to me...

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giant man
Posts: 974
Joined: Fri Jan 14, 2005 3:39 pm
Location: Essex / Lincs UK
Contact:

by giant man

Everything goes wrong, mechanically or electronically. Nothing is a completely magic box of tricks ....

CerveloMikey
Posts: 80
Joined: Tue Sep 16, 2008 11:20 pm
Location: Burbank, CA

by CerveloMikey

giant man wrote:Everything goes wrong, mechanically or electronically. Nothing is a completely magic box of tricks ....


I rode my mechanical 7900 yesterday and it pretty much sucks!
R2.5 / R3 / S-Works 29er (20 lbs) / S-Works SL4 Di2 (14.7 lbs)

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slyboots
Posts: 445
Joined: Sun May 10, 2009 3:31 pm
Location: Russia, Moscow

by slyboots

I rode mine today and it was just fine.

centhar
Posts: 22
Joined: Mon Feb 27, 2012 11:59 pm

by centhar

mlchang wrote:So even incorrectly installed Di2 worked properly for 2 years! That seems pretty awesome to me...


Actually, no... It is as awesome as finding a light bulb was not screwed in tight enough. :wink:

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