Mechanical shifting at its finest. The Eagle 90 brings the precision and robustness of SRAM’s AXS Transmission architecture into a fully mechanical system. Its Full Mount derailleur design ensures unrivalled strength and serviceability, with replaceable parallelogram links, skid plates, and a tool-free threaded cage assembly—making it the most rebuildable derailleur SRAM has ever produced. At its core is a forged aluminium E-MTB crankset with a drive-unit specific T-Type chainring, delivering power and durability in perfect harmony. Shifting under load is seamless thanks to the XS-1275 T-Type cassette with full X-SYNC technology and a premium double-click mechanical shifter. With a revolutionary four-step setup—Prepare. Hang. Tighten. Route.—Eagle 90 eliminates limit screws, b-tension, and guesswork, giving riders a refined and resilient drivetrain ready for any adventure.

Features
• Hangerless Interface (UDH) frame compatibility only
• Distinct black and silver finish
• Available in SRAM/Brose and Bosch-specific chainring and crankset offset variants with “Gap Cap” for seamless fit between crank and ring
• Forged aluminium crank arms in 160 mm, 165 mm, and 170 mm lengths with clip-on guard included
• 34T 104 BCD variant available without crank arms for compatibility with other drive units
• Eagle 90 shifter with stealth architecture and MMX compatibility for SRAM brakes
• Modern ergonomics and textured aluminium lever with dedicated single-click variant for E-MTB use
• XG-1275 cassette with 10–52T range and full X-SYNC shifting under load
• Full Mount derailleur with replaceable B-Knuckle, links, bash guards, bushings, and cage assembly
• Includes GX Eagle Transmission Flattop chain with solid pins, approved for E-MTB use

Specifications
Rear Derailleur: Eagle 90
Right Shifter: Eagle 90
Crank: Eagle 90 ISIS
Crankarm Lengths: 160 mm 
Chainring: 36T Direct Mount
Guard: Included – Aeroguard
Chain: GX T-Type 126 links
Cassette: XS-1275 T-Type 10–52T