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The Shimano E-Tube Cockpit Junction Box works with most the Dura-Ace Di2 and Ultegra Di2 groupsets to enable supplemental shifting positions.
3 Port Di2 junction box
Easy plug and play system to connect the cables.
Battery level indicator feature additional charging point when using internal battery
Gear index setup switch to allow fine tuning via shifter buttons
Reliable and secure water resistant connectors
Stem mounting strap included
Weight: approx. 10g.
E-tube EW-SD50 wires are not included
NOT compatible with Dura Ace Di2 7970 System
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Save up to 8% for over $500 order
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