What App do I use to configure the Eagle Powertrain system? Eagle Powertrain can be adjusted with the SRAM AXS App. Related articles How do I update firmware using the AXS App? Do I need the SRAM AXS App to ride my Eagle Powertrain equipped bike? How do I pair my AXS components together? What does the “Setup Key” do when installing SRAM Eagle AXS Transmission? How do I tell the difference between SRAM X-SYNC 2 and original X-SYNC chainrings?