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Shimano 2 Port Junction EW-JC302
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Shimano 2 Port Junction EW-JC302

Mfg PartNum:IEWJC302
SALE: $20.89
In Stock
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Backorder: This item is currently not in stock but is available to purchase today as a backorder. The expected availability date shown above is our best estimate as to when it will be shipped to you, but this date is subject to change based on our receipt of this item from its vendor. Shipping in the continental US is free for all backorder items (for international orders, our customer service team will contact you when the item is available to ship). Your credit card will not be charged until your item ships (Paypal requires payment up front, but you can cancel for full refund). Anytime prior to shipment, your backorder can be cancelled by contacting our customer service team.

A Crucial Connection In The Di2 Ecosystem

The Shimano 2 Port Junction EW-JC302 Junction allows you to connect two EW-SD300 electric wires to each other. The wires are fixed by a plug connection.


  • Series: EP8 EP800 Series
  • Weight: 5g
  • E-Tube ports: 2
  • E-Tube Port type: SD300
  • Type: Junction B

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

Mfg PartNum: IEWJC302 

Ordered by Most Relevant First
5 stars
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Reviewed 3/6/2023
by Brian g
Overall Rating
Perfect for updating 12 speed shifters

To update 12 speed shifter software, disconnect wire from front derailleur, connect this junction to wire, then connect a second wire to the shifter. Use Shimano software. Boom.

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