Home Page

Cart, contains 0 items

When autocomplete results are available use up and down arrows to review and enter to select. Touch device users, explore by touch or with swipe gestures.
Expert Help
Earn Rewards
  • Just In
  • Learn

EW-WU101 Di2 Wireless Unit

Be the first to review

Out of Stock

Don't worry though, we have a lot more Drivetrain Small Parts in stock than that.

Shop Similar Products

Di2 adds Bluetooth.

While the previous wireless transmitter unit communicated with head units and other devices via ANT+ connectivity, the new Shimano EW-WU101 Di2 Wireless Unit ups the ease of use factor with the addition of Bluetooth. Adding Bluetooth lets you customize your drivetrain and update firmware right from your smartphone or other Bluetooth equipped device via Shimano's E-Tube Project Wireless app.

This little component is like a black box for your bike, feeding data from your derailleurs to your phone or tablet so you can monitor drivetrain metrics like gearing and battery life. The latter is especially useful, as it's looking to be the most effective way the industry has come up with to ensure you won't unexpectedly run out of juice during the trip home. It also measures general riding metrics, so you're not sacrificing the functionality of a normal computer by adding drivetrain info to your cockpit. Your pedal revolutions will also be televised.

The Di2 D-Fly Wireless Transmitter Unit is compatible with Shimano's E-tube Di2 systems and the DN110 battery. In addition to its Bluetooth connectivity, it transmits via ANT+ to Shimano's own PRO computer, as well as other ANT+ equipped head units.


  • The D-Fly wireless unit gets upgraded with Bluetooth connectivity
  • Communicates with devices with ANT+ and Bluetooth protocols
  • Only compatible with Shimano's DN110 battery
  • Wirelessly customize your drivetrain with the E-Tube Project Wireless app
  • Item #SHI00CK
Shimano Di2 E-Tube systems, Shimano DN110 battery
Recommended Use
Manufacturer Warranty
2 years

What do you think about this product?


Selecting an option will reload the available reviews on the page

Sorry, we don’t currently have any of those types of reviews for this product.