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? Will SRAM RED eTap 2x11 work with a 36 or 42 tooth cassette? How do I install the SRAM RED eTap 2x11 groupset on my bicycle? Can I use a non-SRAM chain with SRAM RED eTap® 2x11? Will SRAM make periodic eTap 2x11 firmware updates? Comments 0 comments Article is closed for comments.