The SRAM Apex XPLR AXS Rear Derailleur is a wireless, 12-speed, 1×-specific rear derailleur designed for riders who want a clean, intuitive drivetrain setup with wide gearing capability for both road and gravel use. It integrates SRAM’s AXS wireless shift logic and app connectivity—making fine-tuning and firmware updates easy. According to the manufacturer, it’s compatible with 11–44T, 10–44T or 10–36T cassettes and includes a spring-clutch mechanism for excellent chain retention even under rough terrain.
