SRAM

Eagle 90 T-Type 12-Speed Mechanical Rear Derailleur

What Our Gearhead® Experts Are Saying:

"This derailleur is a game-changer for mechanical shifting. The Full Mount system eliminates inconsistencies across frame designs, providing the most solid and precise shifting feel I’ve ever experienced on a cable-actuated system. The rebuildable design means I can replace individual parts rather than the whole derailleur, making it a long-term investment for serious riders."

For those who demand the best mechanical drivetrain performance, the Eagle 90 T-Type 12-Speed Mechanical Rear Derailleur is the pinnacle of SRAM’s mechanical shifting technology. Using the same Full Mount interface as its AXS siblings, this derailleur eliminates the traditional hanger for a more robust and precise connection to the frame.

The new T-Type cable actuation delivers the crispest, most consistent mechanical shifts SRAM has ever engineered, allowing riders to shift under full power with complete confidence. Whether tackling lung-busting climbs or hammering through rock-strewn descents, the Eagle 90 derailleur keeps the drivetrain running smoothly.

Engineered for longevity, this derailleur is the most rebuildable in the Eagle Transmission ecosystem, featuring replaceable skid plates, parallelogram links, and a modular cage assembly. Designed for aggressive trail, enduro, and e-MTB riding, this derailleur is the ultimate choice for those who want precise shifting, durability, and the ability to maintain their gear for years to come.