TD3 Di2 wiring diagrams

On Traildonkey 3.0 we re-worked the way the rear derailleur housing or wiring are routed through the frameset. Instead of the traditional downtube and chain stay routing we opted for a seat stay and top tube routing configuration. Because of this change we thought it would be helpful to diagram how Di2 is routed and placed into the frame. If you have any questions or challenges routing your Donkey feel free to give us a ring. We’re here to help.

Concepts to be aware of:

• Junction B lives up in or around where the top tube meets the head tube. There is a lot of room to access this area of the frame BEFORE the fork is installed on the frame so do the bulk of your Di2 wiring before finalizing the fork / headset install. Junction B can be stashed / tucked into the top tube itself and that has been our favorite position for it. It fits fairly tight and stays put. It is worth wrapping it in some padding to prevent any rattling sounds from coming from your frame in rough riding or you may also use double sided 3M tape to simply attach it to the inside of the frame in a fixed location.
• The Di2 battery can be placed in the standard seat tube mounting location on many installs. Pay attention to the wire length chart on this page so that you order correct wire lengths as the run through the down tube and up the seat tube is longer than usual.
• If you are running a dropper post on the frameset the battery cannot be stored in the seatpost. In this scenario we’ve devised a tidy system of securing the Di2 battery to two adhesive mounts and securing it to the inside of the down tube near the head tube. We’re happy to send you these mounts at no cost so that your installation is easier just shoot us a note. This system has proven to be reliable over 15,000 TD3 testing miles.