Di2 Wireless Module // BluetoothLE/ANT guide
This complete wireless (BluetoothLE / ANT) Troubleshooting guide will answer your setup questions and help you overcome your BluetoothLE/ANT troubles.
Seatstay D-Fly Wireless Unit
Non-series components EW-WU101
The EW-WU101 D-fly allows your 11-speed 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.
12-speed Di2
All 12-speed Di2 bikes have BluetoothLE / ANT built into the rear derailleur. You do not need this module with 12-speed Di2 - it is not 12-speed compatible.
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The unit has two e-Tube ports, allowing it to be placed between the rear derailleur and junction B. It is meant to be installed on the seat stay, close to the rear derailleur.
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).
E-Tube app
In order to connect the Wireless Unit to your mobile phone you will need either the E-Tube Project mobile app or the E-Tube RIDE app. The latter is meant to be used on E-Bikes, but it'll work on up-to-date road bikes too. Note that if you have never updated your Wireless Unit then it will only work with E-Tube Project.
Pairing a Garmin is relatively simple. The video below shows the process on a Garmin EDGE 830.
The same can be done on a Wahoo ELEMNT device:
And of course, plenty of other bike computers: Sigma, Lezyne, Bryton, Mio, and others all support Di2. You generally add the Di2 system through the sensors menu / page.
Specifications
- Model code: EW-WU101
- Series: Non-series components (NON)
- Weight: 7g
- Speeds: 11
- SD50 ports: 2
Related components
View all componentsRelated pages
Wireless Unit / Information Display – why get a D-Fly
Di2 road bikes do not feature wireless communication by default. You need a Wireless Unit or D-fly in order to add BluetoothLE / ANT to your bike. You can then control your Garmin/Wahoo and see di2 stats and gearing information on your head unit.
Installation Guide: Wireless Unit / D-fly (EW-WU111)
There are many possibilities for installing the EW-WU111 Di2 D-Fly Wireless Unit. This guide explains how to do that.
How to recover from a failed Di2 Wireless firmware update
The Di2 D-Fly or Wireless Unit is a great piece of kit. However, the forced wireless update doesn't always work and *can* crash the entire bike. If that happened to you, read how to fix that right here!
Manuals & other documents
Firmware updates
Below is an overview of all known firmware updates for this component. The changelog texts are Shimano's, and quite often they're a bit cryptic - sorry!
4.6.0
・Improved connectability with Bluetooth.・Adopted for My Bike connectivity for E-TUBE RIDE.
4.5.2
- Adopted for cycle computer with Bluetooth LE connection- Improved connectivity with E-TUBE PROJECT- Bug fixes for the battery consumption when combining with DI2 system
4.3.6
Improved D-FLY switch functions
4.3.4
・Additional ANT function for D-FLY channel switch setting (cycle computer setting)・Firmware updated for E-TUBE PROJECT (PC version)
4.2.3
Additional function for ANT profile- Setting for synchronized shifting- Adopting for buzzer signal
4.1.1
Additional functionDisplay during Bluetooth connectingBug fixing for battery consumption
4.0.7
Firmware uploaded
More images