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Code: EWWU111
Shimano EW-WU111 Di2 Wireless Unit
The Di2 Wireless unit features Shimano's new D-Fly Data Management system. This wireless component adds another dimension to the Di2 experience by wirelessly connecting riders to their Di2 data through there cycling computer. 
 
The Di2 wireless unit is a wireless data transmitter. It easily plugs into the E-tube wiring system and seamlessly connects Di2 equipped bikes to a compatible wireless cycle computer. Shimano D-Fly transmits data through a ANT+ and allows riders to monitor Di2 gear position, battery life, as well as some other rider data functions. The Di2 Wireless Unit is powered by the same Di2 battery that powers the Di2 shifting system. 
 
Features
  • Enables wireless communication for E-Tube programming with smart phone or tablet computer
  • Wirelessly transmits Di2 data to compatible cycling computers
  • Minimalistic, in-line design for clean aesthetics and integration
Miss Harris Easy to fit and does its job effectively.
James Easy enough to install. Just put inline somewhere in Di2 system. Mines installed as cables come out the handlebar tape for accessibility and wanted to make sure it could talk to my Wahoo ok. Which it does. Works a treat.
Mr Eaton Does what it says on the tin, plugged below the battery in the seat post and just works.