SRAM. It looks great and works great. If you want to save weight, SRAM currently (2018) offers the lightest groupset.
Select between Etap or mechanical.
Etap is intuitive and sleek and wire free design ensures the attention remains on your stunning frame. Mechanical SRAM groupsets offer a sturdy, confident shifting experience.
We're here if you need to get into the detail of your groupset selection.