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.
Quick Facts
| Feature |
Specification |
| Speed |
12-speed |
| Actuation type |
T-Type mechanical cable actuation |
| Cage length |
Long |
| Max cog size |
52 tooth |
| Claimed weight |
395 grams |