Which ferrules should I use for my SRAM Eagle cable housing? We advise that you use aluminum ferrules. Plastic endcaps have excessive flex, which can affect shifting performance. Related articles How do I determine the right chain length for my SRAM Eagle drivetrain? Can I use SRAM 1x11 shifters with a 12-speed Eagle derailleur? How do I change the cable on my SRAM Eagle shifter? How do I size a chain for a SRAM eTap AXS 1x drivetrain? Which cleaner can I use on my SRAM drivetrain?