Is SRAM RED eTap recommended for a rim brake cyclocross application in muddy conditions? August 13, 2015 15:54 Updated Yes. Related articles What if I crash? Is there a crash mode for eTap 2x11 derailleurs? What is preventing the eTap Blip ports in the shifter from letting in water or other contaminants when Blips are not in use? What is the warranty on eTap® and eTap® HRD components? Can I adjust the eTap 2x11 derailleurs while I am riding like you can with a barrel adjuster on a mechanical system? How hard it is to pair the eTap 2x11 system and get all of the components to recognize each other?