E-TUBE Junction A Built In Type


E-TUBE Junction A – Built-in type for frame or handlebar

Designed for use as a bar-end on drop handlebars or with designated frames, the RS910 junction is a 2-port option for internal E-TUBE wire routing, charging, battery monitoring, and shift mode switching.

SHIMANO PC Linkage Device Micro USB Port


Allows fault diagnosis and firmware updates for Di2 components
  • E-tube Di2 PC interface is required for quick and easy problem solving via your PC
  • the PC interface simply plugs into any part of the electrical system and can test each component diagnosing the cause of any problems on your PC
  • Can also be used to carry out firmware updates via the E-tube software on your PC
  • Can be linked to the E-tube software to change shifting settings like shift speed and multi-shift options
  • For use with E-tube Di2 systems


SHIMANO – PC Linkage Device – E-TUBE – Micro USB Port

SHIMANO’s SM-PCE02 PC Linkage Device for STEPS and DI2 groups is used to check system functions, connections, and errors as well as update firmware and customize functions. The SM-PCE02 connects through a Micro USB port.


  • Improved the quality for the communication against noise
  • Easy checking function for current leakage
  • Shimano EW-SD50 E-TUBE Electric Wire

  • EW-SD50

    E-TUBE Electric Wire

    Available in lengths from 150 to 1600mm, the SD50 E-TUBE wire transmits interactive signals and provides power to E-TUBE DI2 drivetrains. With a compact, waterproof connector, it can be easily routed internally in handlebars and frames thanks to its “plug & gap” connection.


    • Transmits interactive signals and power supply to each electronic components by “plug & gap” connection
    • Compact and waterproof connector
    • Easy to insert into frame
    • Cable length 150 mm – 1600 mm
    • With cable tie type for built-in cable routing (EW-SD50-I)


    RemarksCable length: 150 – 1,600 mm* * 1,600 mm is for E-BIKE usage only
    TypeFor external routing
    Compatible systemE-TUBE system
    SD50 port (pcs)0
    SD300 port (pcs)0
    SD50 connector (pcs)2
    SD300 connector (pcs)0
    Cord diameterΦ2.8
    Plug diameterΦ5.1

Shimano Y-Split Routing EW-JC130 E-Tube Connector

Shimano’s EW-JC130 Y-Split Routing Cable makes it easy to customize your Dura-Ace Di2 R9150 cockpit, or any other Shimano shifters that are E-Tube Compatible.

  1. Works with any E-Tube compatible Shifters
  2. Cannot be shortened
  3. Made in Japan

3 different lengths:

  1. EW-JC130-SS:
  2. EW-JC130-MM:
  3. EW-JC130-SM:

Internal Junction B

Non-series components SM-JC41

The junction box SM-JC41 is used inside the frame, for internal wire routing. Even though the unit is relatively small, not all older frames will accommodate an internal junction B.

Alternatively you can use either the SM-BTC1 battery mountexternal junction box SM-JC40, or not use a junction B at all.

Shimano EW-WU111 D-Fly Wireless Unit for Di2 Systems – ANT+ / Bluetooth – Brake Hose Installation

Shimano introduced the Di2 Wireless Unit SM-EWW01 (previous version of the EW-WU101) featuring the new Shimano D-Fly Data Management system. This wireless component added another dimension to the Di2 experience by wirelessly connecting riders to their Di2 data through a cycling computer.

The Di2 wireless unit is a compact wireless data transmitter. It easily plugs into the E-tube wiring system and seamlessly connects Di2 equipped bikes to a compatible wireless cycle computer. Shimano D-Fly transmits data through a proprietary private ANT wireless protocol and allows riders to monitor Di2 gear position, battery life, as well as some other common rider data functions. The Di2 Wireless Unit is powered by the same Di2 battery that powers the Di2 shifting system. It is compatible with ANT+ devices like the Shimano Action Camera CM-1000 or the PRO SCIO ANT+ cycling computer.

EW-WU111 Di2 D-Fly ANT+ Wireless Unit

One feature on the EW-WU111 is a wireless Bluetooth connection to Shimano’s E-TUBE program, which is the system Shimano uses to set up and control the Di2 shifting behaviour. Through Bluetooth technology riders or mechanics can wirelessly communicate with the EW-WU111 wireless data transmitter unit via a computer, tablet or a smart phone. As well as allowing wireless workshop customizability, it allows riders to customize their shifting preferences on the trail via an app on their smartphones.

Attention: The new integrated BT-DN110 battery or the external battery mount (BM-DN100) is strictly required.

Wireless Connections

Smart phone: Bluetooth® wireless connectivity through E-Tube Wireless App; Functions: Drivetrain customization, firmware update

Tablet: Bluetooth® wireless connectivity through E-Tube Project Wireless App; Function: Drivetrain customization, firmware update, error check, pre-set

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