Shimano Di2 SM-EW90-A Junction Box A - 3 Port

GBP 70.9

RRP £109.99


Save: £39.09


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In stock


Usually dispatched within 24 hours

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Average connection time 25 secs

Average connection time 25 secs

The Shimano Dura-Ace Di2 (Dual Integrated Intelligence) is the next generation of junction boxes. Put to the test in competition and used in victories by pro riders in every condition, including the 2012 Tour de France Team Sky.

The under-stem Junction Box A is versatile with the multiple shifters. Mount the Junction Box A under the stem with the included rubber harness and can be used with the 9070 setup with multiple shifters. The EW90-A 3 Port Junction Box is designed for a standard drop-handlebar with both STI and Sprinter shifters.

Key Features:

  • Shimano Di2 EW90-A 3-port junction box
  • Designed for use with drop handlebars
  • Allows you to use both STI and Sprinter shifters for excellent versatility
  • Cables sold separately
Shimano Dura Ace
Brand Compatibility:

How long will it take to arrive?

Please check the stock availability notice on your item when placing your order. This item is: In stock

Express Delivery

If ordered before 11pm, delivered by courier next working day.

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Customer Reviews

Overall Rating : 5.0 / 5 (3 Reviews)
  • 3 5 star reviews
  • 0 4 star reviews
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  • 0 1 star reviews

Top Customer Reviews

Where reviews refer to foods or cosmetic products, results may vary from person to person. Customer reviews are independent and do not represent the views of The Hut Group.

Equipment that is expected this year

On this year's season is expected to be a happy ride with ultegra di2.

Great Product

Excellent product. Purchased it for a Ultrega set up but I can easily change it to the new Dura Ace without changing this junction box.


The Junction Box works perfectly - with the E-Tube capability it can be plugged in anywhere, and is not limited to the cockpit. It would be nice if it were a bit smaller.