gruppo sram red etap axs 2x post mountSRAM Red eTap AXS 2X Kit with Post Mount hydraulic brake focuses entirely on electronics. AXS as a new electronic integration platform that connects any electronic bike component to the software, allowing maximum control and great customization capability of the bicycle, all without cables. Each kit contains: Right SRAM Red eTap AXS shifter Left SRAM Red eTap AXS shifter Rear derailleur SRAM Red eTap AXS Front derailleur SRAM Red eTap AXS SRAM Red