Product Review

Shimanos SM-EWWU111A 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 Shimano Road Di2 systemsDimensions: 38mm x 25mm x 12.5mmCompatible with Garmin Edge 1000 and PRO SCIO ANT+ cycling computerWeight: 5gPowered by Di2 shifting system battery