Shimano Di2 Y-Split Rooting E-Tube Connector (EW-JC130SM)

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Shimano’s Di2 E-tube technology delivers unrivaled performance and reliability. The wide variety of customization means that Di2 can be adapted for any rider and any bike. This Y split wire is designed to offer more wiring options, and is specifically designed to wire the new EW-RS910 internal drop-bar-end mounted junction box. It comes in different lengths and configurations for different sizes of bars and frames.


  • 3-way split for Shimano E-tube Di2 systems
  • Used for wiring the bar-end internal junction A box


  • SS: 250/350/50 mm
  • SM: 450/350/50mm
  • MM: 550/550/50mm