The best touch screen of any head unit we've used to date, the Sigma Rox 12 is the computer we'd pick for exploring new roads You can trust Cyclingnews Our experts spend countless hours testing ...

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The Rox series is Sigma’s new top line all-singing, all-dancing duo of computers, with the 9.0 being topmost, with wireless cadence, speed and heart rate. The software is easy to use, and the USB ...

One of the fastest-updating wireless computers we've tested, with a clear and simple display. We’ve had one of these for about a year, and it has been working faultlessly, much like every other Sigma ...