SRAM Red AXS E1 12 Speed Rear Derailleur

Effortless performance. Effortless perfection.
The heart of the SRAM AXS ecosystem is lighter, more efficient, and more capable than ever. Covering cassette ranges from 10-28 up to 10-36, this wireless wonder has larger pulleys to decrease chain articulation and increase efficiency, and an Orbit damper to keep everything in place over the rough stuff. One derailleur ready for 1x or 2x, on road or off.

Features of SRAM RED AXS Rear Derailleur:
Orbit chain management technology
AXS enabled for easy setup, personalization, and reliability
16 g lighter than previous generation
Compatible with both 1x and 2x drivetrains
Larger X-SYNC pulleys for increased efficiency
Compatible with existing AXS batteries
Note: The rechargeable battery is not included!

AXS™
AXS™ is SRAM's integrated wireless platform for connecting electronic bike components with software. The SRAM AXS™ app allows riders not only to check battery levels, influence shifting behavior and configure controls according to personal preferences, but also to create maintenance schedules and update firmware.