Why does my chain drop when shifting my SRAM eTap AXS front derailleur? When the chain drops off the chainrings while shifting with RED or Force eTap AXS drivetrains, it is often the result of the front derailleur being set up outside of our specifications. Complete setup instructions are include in the setup manual, but a fast and simple eTap AXS chain drop troubleshooting guide should help you get back on the road and enjoy your ride. Related articles Where can I order a front derailleur alignment tool to help setup my SRAM eTap AXS? Why is my SRAM Force eTap AXS drivetrain noisy, especially the cassette? How do I know when to charge the eTap® 2x11 derailleur or replace the shifter batteries? How long does it take to charge an AXS battery? Why are my SRAM eTap AXS disc brakes noisy?