Sram red etap 2x11 aero groupsetthe sram red etap 2x11 aero road groupset has totally revolutionised road bike gear shifting with its wireless operation and motorsport inspired shifting simply push the left blip for an easier gear and the right blip for a harder gear there are no shift cables to tension or wires to run so you can simply charge it up install sync and ride removal of those untidy outer cables along the length of your bike not only make it more aesthetically pleasing it rem