Di2 Connectors......
Author
Discussion

esuuv

Original Poster:

1,420 posts

234 months

Wednesday 31st August 2016
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Evening all - i'm adding some remote shifters to my brakes on my TT bike - I need some connectors so I can break the cable if I need to take it apart at some point - inline 2 cable, small as possible - any suggestions? They'll be buried inside the basebar / stem so don't need to be super waterproof but some resistance would be good.

I'm sure i read on here (or maybe not here) someone had identified the particular connector shimano use - i quite like the positive click - and the fact they seem to be pretty waterproof.

ALawson

8,054 posts

280 months

Thursday 1st September 2016
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Is to avoid buying a 5 port junction box?

esuuv

Original Poster:

1,420 posts

234 months

Thursday 1st September 2016
quotequote all
No - I have one of those.

I have hydraulic brakes so I cant use the Shimano TT brake levers with the integrated Di2 buttons.

I have some waterproof buttons that will stick on the outside of the Magura brake lever assembly I have, i have also cannibalised the internals of a sprinter switch to give me the electronics to talk to the Di2 - I need to run a cable from the sprinter switch electronics in the stem to the buttons out on the brake levers - its this cable I want to be able to break.

mikecassie

673 posts

188 months

Thursday 1st September 2016
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http://www.wiggle.co.uk/shimano-ew-sd50-e-tube-di2...

Not that expensive and you could get 2 connectors out of one wire if bought this way?

When I say not that expensive, I am meaning compared to what some of us spend annually on our hobby.

Magic919

14,462 posts

230 months

Thursday 1st September 2016
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The trouble with the Shimano wires is they don't connect to other wires using the plugs. The plain internal 4x junction could be used.

Raven Flyer

1,645 posts

253 months

Tuesday 6th September 2016
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You should have a spare port on the STI.

What sort of hydraulics are you running on a TT???

upsidedownmark

2,120 posts

164 months

Tuesday 6th September 2016
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Common problem. They'll probably be magura RT-8 (I think) hydro rim brakes, as fitted to many cervelos..

No idea about the cannibalising process for the switches / buttons, there's a whole thread about di2 hacks on slowtwitch I believe; nor do I know how you're going to get a 'di2' plug on the end of the wire, but essentially I think you need to do that.

In terms of the plug end, all the 'wire' plugs are the same, and they plug into junction boxes. So you either run the new buttons back to a 5 port box, or you use the 4 port downtube connectors to join them.

No STI's, it's a TT setup, bar end shifters (and adding bullhorn shifters, but can't use the shimano ones due to aforementioned hydro brakes)