SRAM X01 Eagle Type 3 X-HORIZON Rear Derailleur - max. 52 T. - 12-speed - Black / Red

The SRAM X01 Eagle Type 3 X‑HORIZON rear derailleur is a 12‑speed MTB component designed for 10‑52T cassettes. It features a straight‑parallelogram X‑HORIZON design, roller‑bearing clutch, and cage‑lock mechanism, delivering precise shifting and stable chain management in black and red.

The SRAM X01 Eagle Type 3 X‑HORIZON rear derailleur, model SRA481939, is built for mountain biking and supports a 12‑speed drivetrain with a cassette range of 10‑52 teeth. Its X‑HORIZON straight‑parallelogram architecture restricts movement to the horizontal axis, eliminating ghost shifts and reducing shift force. The large upper pulley offset maintains a consistent chain gap across all gears, while the roller‑bearing clutch provides drivetrain stability on rough terrain by minimizing derailleur bounce and chain slap. Cage‑lock technology simplifies wheel and chain installation by allowing the cage to be pushed forward for slack and then locked in place. The derailleur is compatible with SRAM Level brake systems and matches the SRAM X‑SYNC and MatchMaker X shifters. Finished in a black and red colorway, it aligns with the 2026 X01 Eagle product series and offers reliable performance for riders seeking precise, durable shifting.