Is there a SRAM eTap AXS rear derailleur compatible with a higher max cog size than 33T? November 13, 2020 14:45 Updated Yes. The SRAM Force eTap AXS rear derailleur is available in a 10-36T max configuration. Related articles What is the max cog size that is compatible with SRAM RED or Force eTap AXS™ rear derailleurs? Why do SRAM RED and Force eTap AXS rear derailleurs use the new Orbit fluid clutch instead of the Roller Bearing Clutch used on SRAM’s mountain bike rear derailleurs? Is there a different eTap AXS rear derailleur for 2x and 1x drivetrains? What are the main differences between RED eTap AXS™ and Force eTap AXS™? Is there a marking or indication on the rear derailleur to know if it is a 36t-max or 33t-max version? Comments 0 comments Article is closed for comments.