Shimano adds wireless functionality to Di2 groupsets

New wireless component provides gear position and battery life data

Shimano has added a new component to unlock wireless capability within existing Di2 groupsets – but don't get too excited, this isn't an upgrade to wireless shifting!

Instead, it's a way for Di2 owners to display gear position and battery life data from their transmission on a compatible cycle computer.

The SM-EWW01 plugs into the E-tube wiring system of current Di2 groupsets, where it then transmits gear position and battery life data wirelessly to a compatible cycle computer. It's what Shimano is calling the D-Fly Data Management system.

The component is powered via the same Di2 battery that powers the shifting system. It's compatible with Shimano's Dura-Ace 9070, Ultegra 6870 and Ultegra 6770 Di2 groupsets. Retailing at £69.99, the unit weighs just 5g and is fairly svelte – only 38mm long, 25mm wide and 12.5mm tall.

Currently the SM-EWW01 is only compatible with the PRO SCIO ANT+, a new £99.99 computer from PRO's 2014 product line. Shimano says it's currently working with MIO and other companies to increase compatiblity by later this year.

Oli Woodman

Section Editor, UK
With more than 10 years of experience riding mountain bikes, Oli knows the good from the bad when it comes to gear. He's a total bike nerd and loves few things more than fettling with spangly riding bits. Also, he seems to have a talent for crashing hard but emerging unscathed.
  • Discipline: Mountain
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