Shimano's E-Tube Di2 Junction Box (also known as the B junction) connects all your component and battery wires to make assembly much easier. It's a crucial item along with the five required wire sections to operate your Ultegra 6770, Ultegra 6870, or Dura-Ace 9070 Di2 shift system. The E-Tube Di2 Junction Box is available in two configurations: Internal (SM-JC41) and External (SM-JC40).
SHIMANO Ultegra Di2 Internal Routing Junction Box
Was:
$122.80
Now:
$61.40
- SKU:
- ZDF994390
- UPC:
- 689228827462
- Condition:
- New
- Availability:
- Free Shipping from the USA. Estimated 2-4 days delivery.
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SHIMANO Ultegra Di2 External Routing Junction Box
Was:
$131.26
Now:
$65.63
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SHIMANO Ultegra Di2 6mm Circular Grommet for Internal Routing -4-Pieces-
Was:
$67.90
Now:
$33.95
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SHIMANO Ultegra Di2 7x8mm Grommet for Intermal Routing -4-Pieces-
Was:
$70.80
Now:
$35.40
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Shimano Ultegra Di2 Sd50 Gear Wire - 850mm
Was:
$95.90
Now:
$47.95
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SHIMANO Ultegra Di2 EWSD50 Electric Wire 350mm
Was:
$83.36
Now:
$41.68