SRAM RED eTap AXS E1 Rear DerailleurSRAM RED eTap AXS E1 Rear Derailleur The RED AXS rear derailleur is the central component of the AXS ecosystem and impresses with its low weight, high efficiency, and reliable performance. The wireless shifting technology supports cassette gradations from 10 28 to 10 36 teeth, offering a wide range of applications. Larger derailleur pulleys reduce chain movement and contribute to improved drive efficiency. The integrated Orbit fluid damper ensures