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 ...

The Sigma ROX 12.1 Evo became the German brand’s premium GPS computer when it launched earlier this year. But despite costing a hefty £379.95 / $379.95 / €379.95, the Sigma ROX 12.1 Evo lags behind ...

I have been speeding around on a new bike this weekend, a cheap-o fixed gear I picked up in order to study for the Gadget Lab build-a-fixie project. I’m hooked — it’s so much fun riding the thing.

Sigma may not be as well-known as the likes of Wahoo and Garmin, but its ROX 11.1 Evo is an excellent bike computer, combining a user-friendly interface with riding and training data.

The cycling computer market is an increasingly crowded space. One brand you may not have considered is Sigma, but the newly launched Sigma ROX 12.1 EVO is looking to change that, and matches the ...