Are Rival eTap AXS shift levers compatible with Eagle AXS rear derailleurs? April 15, 2021 22:51 Updated Yes! For Mullet builds, AXS allows you to mix and match select AXS Road and AXS MTB components. Learn more about what this is all about in our article, SRAM AXS Mullet Build. Related articles Can I use a BlipBox with Rival eTap AXS derailleurs? Can I use remote shift buttons, like Blips or Clics, with Rival eTap AXS? How far can I ride on a fully charged Rival eTap AXS derailleur battery? Are there Rival eTap AXS rim brake and disc brake options? Is Rival eTap AXS compatible with SRAM RED or Force eTap AXS parts? Comments 0 comments Please sign in to leave a comment.