Eagle 90 T-Type Rear Derailleur

The SRAM Eagle 90 T-Type Rear Derailleur brings 12-speed mechanical shifting to 1x mountain drivetrains. Its long cage accommodates cassettes up to 52 teeth, while the aluminum cage construction keeps the unit durable under trail conditions. A Full Mount, hangerless interface connects directly to a UDH-equipped frame, removing the traditional derailleur hanger from the equation entirely.

Pairing with SRAM's T-Type chain, the derailleur wraps up to 42 teeth and skips limit screws and b-tension adjustment, simplifying setup. Replaceable outer and inner parallelogram links, skid plates, and a tool-free threaded cage assembly support long-term maintenance and field repairs. Claimed weight sits at 395 grams, keeping the system light for cross-country and trail riding.

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