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Shimano Di2 EW-RS910 Junction A (Bar End)
  • Shimano Di2 EW-RS910 Junction A (Bar End)
  • Shimano Di2 EW-RS910 Junction A (Bar End)
  • Shimano Di2 EW-RS910 Junction A (Bar End)
  • Shimano Di2 EW-RS910 Junction A (Bar End)
Shimano Di2 EW-RS910 Junction A (Bar End)

Shimano Di2 EW-RS910 Junction A (Bar End)

$180.00 CAD

Hidden Integration. Sleek Aerodynamics.

The EW-RS910 serves as the central communication hub and charging port for 11Speed Di2 systems (like Ultegra R8050 and Dura-Ace R9150). By moving the junction box to the handlebar end or a frame down tube port, it significantly cleans up the cockpit, removing the "rat's nest" of wires around the stem. It features an integrated charging port and two LED indicators to keep you informed of your battery level and shift mode.

Why the RS910 is a "Superbike" Essential:

  • Bar-End or Frame Mounting: Designed to fit perfectly into the end of a drop handlebar (minimum 20.5mm ID) or into compatible frames with a built-in junction port. This creates a "factory" look that traditional external junctions can't match.

  • Streamlined Cockpit: Eliminates the need for a rubber strap under the stem. This reduces wind drag and creates a much cleaner look for modern aero bikes and integrated cockpits.

  • Integrated Charging Port: The weather-sealed port allows you to charge your internal BT-DN110 battery using the SM-BCR2 charger without removing any parts.

  • Mode & Battery Indicators: Features a small button and two LEDs to check battery status (Green/Red) and to toggle between shifting modes (Manual, Semi-Sync, and Full Synchronized Shift).

  • Two E-Tube Ports: Equipped with two SD50 ports, allowing for easy internal wiring to the rest of the Di2 system.

  • Rugged and Reliable: Despite its tiny size, it is fully waterproof and built to withstand the vibrations and impacts of high-speed road and gravel riding.

Technical Specifications:

  • Model: EW-RS910

  • Type: Built-in Junction A (Internal)

  • Ports: 2 x SD50 E-Tube ports

  • Charging Port: 1 (for SM-BCR2)

  • Mounting Location: Bar-end or Frame Port

  • Compatibility: All 11Speed Di2 systems (E-Tube)

  • Weight: ~11g

The Alegro Perspective: In the shop, we consider the RS910 a mandatory part of any high-end custom build. It is the piece of tech that truly makes a Di2 bike look like the future. If you are building a Winspace SLC 3.0 or a Brodie Romax, this is the junction you want. It makes the bike easier to clean, more aerodynamic, and visually stunning.

Invisible Intelligence. Aero Integration. Perfect your Cockpit with Shimano.

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