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Shimano Di2 E-Tube Y-Split Connector

Shimano offers several so-called B Junction, Y-Split connection harnesses for E-Tube Di2. These connectors have been developed to allow you to connect your cockpit controls as cleanly and efficiently as possible. All options start with EW-JC130. This MM version features three cables that join at a permanent Y-junction, with three male connectors, one at the end of each cable.

This EW-JC130MM Y-Split E-Tube Connector has a (A) feed that goes into the Y-Split. One branch of the Y-Split is long (B), the other is short (C). This system cannot be shortened or modified, and works with all E-Tube Di2 shifters.


  • Y-Split E-Tube Connector harness for E-Tube Di2 shifter set up
  • Shimano sizes the unit by three lengths: A, B, C
  • A is the feed that runs into the Y- Split
  • B and C are the branches of the Y-Split
  • Each end is a male E-Tube connector
  • EW-JC130MM has (A) 520mm, (B) 520mm, (C) 50mm
  • Weight: 13 grams
  • Shimano MFG part# IEWJC130MM
Reg Price $64.99


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