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Wireless Unit / D-fly

The EW-WU111 D-fly allows your Di2 system to communicate wirelessly with your head unit and smartphone or tablet. It'll let you display currently selected gears, allows you to switch head unit screens, update firmware, change settings and more.

It is generally placed on road bikes, positioned somewhere outside the frame, or in your handlebars. Have a look at the attached user manual for examples on where to place this unit on your bike.

The unit has two e-Tube ports - one on each end - allowing it to be place in between two cables.

BT-DN110 / BM-DN100 required

The EW-WU111 / EW-WU101 wireless units are meant to be used with the BT-DN110 / BM-DN100 battery/mount and will not work with the older SM-BTR2, SM-BMR1 or SM-BMR2 batteries. The older SM-EWW01 will work with the older batteries, but only supports ANT+ (no BluetoothLE).

EW-WU111 wireless unit

Details & specifications

Shimano model codeEW-WU111
Shimano model nameWireless Unit
Weight7 g
SeriesUltegra 6770, Ultegra 6780, Ultegra R8000, DURA-ACE 9070, DURA-ACE R9150
Downloads EW-WU111 manual
View on Amazon (new tab)  |  eBay (new tab) Chain Reaction Cycles (new tab)

Shopping links

Are you looking to upgrade your bike using this component? We've added shoppings links to this component's Amazon and eBay pages. Click the images below to view the Amazon product page or eBay search results.

Click to view on Amazon
Click to search on eBay
Click to search on Chain Reaction Cycles

An alternative to the Wireless Unit is the mountain bike System Information Display (XT SC-M800 | XTR SC-M9051). This display functions as a Junction A with three ports, a display and features bluetooth/ANT+ connectivity.

BT-DN110 / BM-DN100 required

The EW-WU111 / EW-WU101 wireless units are meant to be used with the BT-DN110 / BM-DN100 battery/mount and will not work with the older SM-BTR2, SM-BMR1 or SM-BMR2 batteries. The older SM-EWW01 will work with the older batteries, but only supports ANT+ (no BluetoothLE).

Installation guide

Read how to install the EW-WU111 Wireless Unit in our D-fly / EW-WU111 Wireless Unit installation guide.