Will SRAM RED eTap 2x11 derailleurs work with 10-speed drivetrains? November 20, 2019 17:47 Updated No, SRAM RED eTap 2x11 shifters are 11-speed (22) compatible only. Related articles Can RED and Force eTap AXS™ be fitted to a bike that is currently compatible with 8, 9, 10 or 11-speed groupsets? How do I install the SRAM RED eTap 2x11 groupset on my bicycle? Will SRAM make periodic eTap 2x11 firmware updates? Will SRAM RED eTap 2x11 work with a 36 or 42 tooth cassette? Can I assemble a SRAM RED eTap 2x11 system with no front derailleur to create a 1x drivetrain? Will the system still work? Comments 0 comments Article is closed for comments.