How do I connect my Di2 junction box?

What does the button on the Junction box do?

1. Press-and-hold the button for 0.5 seconds to enter Bluetooth LE connection mode.
2. Press-and-hold the button for 2 seconds or more to enter adjustment mode.
3. Press-and-hold the button for 5 seconds or more to trigger rear derailleur crash protection reset.

Are all Di2 cables the same?

In general, every electronic Di2 component is compatible between the Ultegra 6770, 6870, and Dura-Ace 9070 systems (see exceptions below.) Any of the Ultegra/Dura-Ace controllers (A Junctions) can be used with either system. All components use the same cables and connectors.

Will Shimano Di2 go wireless?

In a nutshell, both the Ultegra and the high-end Dura-Ace groups (formerly 2×11) are now 2×12 and the Di2 electronic shifting system was completely reengineered to provide a wireless cockpit. Shimano claims this redesign makes for 58\% faster rear shifting and 45\% faster front shifting than the previous iteration.

Where does the Shimano Di2 battery go?

The Shimano BT-DN110 internal Di2 battery can be installed in a number of places: the fork, MTB handlebar, a really long stem.. anywhere that fits really. You will most often find it installed in the seatpost and for good reason: this way it is close to junction B and the bike’s derailleurs.

How do I connect my Shimano Di2 to my computer?

Connecting a Di2 bike to a Windows computer is done via the charging/interface port on the Junction A. Modern road bikes, mountain bikes, and gravel bikes will all have this junction and the required interface/charge port. Some urban bikes will too.

What wires do you need for Di2?

You’ll need at least three (Shifter -> Junction A -> Battery / Rear derailleur) EW-SD50 electric wires to build a Di2 system. Most setups will use a more sensible set of five or six wires. Apart from the EW-SD50 there’s also the EW-JC130 Y-connector and EW-JC200 inline-port to help you connect all the components.

Will Shimano release 105 Di2?

That leaves a big price gap between Ultegra R8100 Di2 and Shimano’s third-tier 105 groupset which is mechanical only. Shimano has said in the past that it has no plans to offer Di2 electronic shifting at 105 level although, of course, strategies can change over time as technologies and markets develop.

What is a junction box on a Di2 motor?

Wire Junction Boxes There are two wire junction boxes in any Di2 set-up. These are where the wires leading to the various components come together. The cockpit, or “A” junction, which hangs below the stem, is part of the Front Wire Harness, so we’ll discuss it in the wiring section.

What parts do I need to build a Di2 system?

Like many other parts you can get an external or internal version, depending on what will fit your frame. You’ll need at least three (Shifter -> Junction A -> Battery / Rear derailleur) EW-SD50 electric wires to build a Di2 system.

What type of junction box do I need for my bike?

On a road bike you’ll most likely use the traditional below-the-stem external junction A ( SM-EW90) or the newer handlebar/frame mounted junction box ( EW-RS910 ). The functionality of both components is exactly the same, but they differ in the amount of E-Tube ports they offer.

Where does the down tube wire Connect?

The Down tube Wire connects the cockpit, “A” junction, and thus, the Front Wire Harness, to the lower “B” junction. It can be run inside the down tube of the frame (compatible frames only) or outside it.