Di2 on a Ritchey Breakaway

[Look585]

I soldered up a custom wiring harness for my Steel Di2 BreakAway:

One hole drilled up at the DT/HT junction. Unscientifically located (I guessed) below the heat affected zone of the DT/HT TIG weld and above the tube butt transition.

Two splices take the place of the 4-port junction such that the only connection is an eTube JC200 2-port junction located at the DT coupler. The splices were done with heat shrink butt connectors and sealed with adhesive heat shrink tubing. They seem pretty water resistant; however I would not take them swimming.

By utilizing the BB drain hole and dropout vent, I was able to reduce the frame modifications to a single 3mm drilling near the HT.

Here's a crude drawing: