Shimano IEWWU111 Di2 Wireless Transmitter Unit

Shimano's SM-EWWU101 D-Fly wireless transmitter connects riders to their Di2 data to monitor Di2 gear position, battery life, as well as some other common rider data functions.

• Compatible with Dura-Ace 9070, Ultegra 6870 Di2 and Ultegra 6770 Di2 road shifting systems
• Powered by Di2 shifting system battery
• Plugs inline anywhere in compatible systems, external mounting recommended
• Compatible with Garmin Edge 1000 and PRO SCIO ANT+ cycling computer
• Dimensions: 38mm x 25mm x 12.5mm
• Requires additional e-Tube wire
• Future compatibility with others computers planned for the 1st quarter of 2014
• Weight: 5g