Spotted: Shimano Di2 Wireless Data Management System

Gear News
Device will pair with new cycling computer and display battery life and current gear

Just like your car, your bike can soon be outfitted with what amounts to a fuel gauge and gear indicator. But in this case, fuel refers to the battery life left in you electronic shifting system, not your body’s proverbial gas tank.

Further expanding the capabilities of its Di2 electronic shifting systems, Shimano is rolling out a new Di2 wireless unit featuring the new Shimano D-Fly data management system. This new component uses a proprietary and private ANT wireless protocol and connects wirelessly, allowing riders to keep tabs of what gear they are in, how much juice is left in their Di2 battery, and some other common rider data functions (which Shimano has not yet revealed). The new unit is powered by the same battery that powers the Di2 shifting system.

The SM-EWW01, as it’s known for now, is compatible with Dura-Ace 9070, Ultegra 6870 Di2 and Ultegra 6770 E-tube electronic shifting systems, plugs into the E-tube wiring system, and connects to a compatible wireless computer.

Initially the only computer that resides in that category will be the PRO SCIO ANT+, a new 2014 introduction from Shimano’s component line. Future compatibility with MIO and other cycling computers will be offered later in 2014, but again Shimano has not yet revealed which other computers will work with the new system.

The SM-EWW01 (yes, that’s really what they are calling it) is 38mm long, 25mm wide, 12.5mm high, and weighs less than 5 grams. It will be available starting in March with a MSRP of $80. The SCIO ANT+ cycling computer, available starting this month, weighs 80 grams and will come in white or black color options. MSRP is $139.

The question going forward is whether this is simply the first step for a device that could eventually simplify the mechanics of programming shift button function and speed on Di2 systems. Currently you must plug into a computer to get that done. Alas, at this point, Shimano is being tight lipped about future developments, but we’ll keep digging and keep you updated.

Photo Thumbnails (click to enlarge)
About the author: Jason Sumner

An avid cyclist, Jason Sumner has been writing about two-wheeled pursuits of all kinds since 1999. He’s covered the Tour de France, the Olympic Games, and dozens of other international cycling events. He also likes to throw himself into the fray, penning first-person accounts of cycling adventures all over the globe. Sumner, who joined the / staff in 2013, has also done extensive gear testing and is the author of the cycling guide book "75 Classic Rides: Colorado." When not writing or riding, the native Coloradoan can be found enjoying time with his wife Lisa and daughter Cora.

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