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 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 ...

The Sigma 15mm F1.4 DC Contemporary is an attractive prime lens for APS-C camera owners thanks to its small size, fast autofocus, and all-around excellent picture quality.

Much like the 2006 MHR, this computer from Sigma is no hassle to use and has a display with adjustable contrast. Tool-free fitting is a breeze, and once past the initial set-up of the unit it’s easy to ...