Where can I find service and maintenance information for my SRAM RED eTap AXS rear derailleur? Service and maintenance information, including SRAM Tech videos, can be found on the product service page here. Related articles How do I submit a warranty claim for SRAM, RockShox, and Zipp products? Seasonal Maintenance Tips Why does the rear derailleur or chain contact the chainstay while in the smallest cogs? How do I download the SRAM AXS Mobile App and create a login? What frame bottom bracket interface standards work with the Force eTap AXS 43/30 cranksets?