Check out the Mack Cycle collection of bikes with SRAM eTap AXS electronic shifting. eTap AXS, is a wireless, app-customizable drivetrain system by SRAM available for road, gravel, and mountain bikes (Eagle AXS). Mack Cycle has an incredible collection of road bikes, gravel bikes, and triathlon bikes with SRAM eTap AXS from brands like Pinarello, BMC, Specialized, Cannondale, Cervelo, and Giant.