SRAM Eagle 90Delivers the dream, and then some. Featuring the same Full Mount derailleur architecture as it’s AXS Transmission siblings, it is unquestionably robust. And for the just in case, the derailleur body features replaceable outer and inner parallelogram links, skid plates, and a tool-free threaded cage assembly, making it the most rebuildable derailleur SRAM have ever built. 104mm bolt circle diameter variant without crank arms for compatibility with all other drive unit manufacturers. 

Shifting under load is a signature of Eagle Transmission, and this is made possible on 90 with an XS-1275 T-Type cassette that features full X-Sync technology, and a dedicated single-click mechanical shifter for E-MTB use. For those inclined to DIY, mechanical Eagle Transmission has a revolutionary simple four step setup procedure: Prepare. Hang. Tighten. Route. Featuring no limit screws, no b-tension, and no guesswork. Built to take you as far as your imagination and body will allow, Eagle 90 Transmission provides riders with an unparalleled ride experience. 

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 a seamless between crank and ring Includes clip-on guard.
34t 104bcd, variant without crank arms for compatibility with all other drive unit manufactures.
Eagle 90 shift lever features stealth architecture, and MMX compatibility for seamless pairing with SRAM brakes. Cockpit tidying Shift Housing/Brake Hose clip included.
Shift lever is built with modern shift ergonomics and a premium textured aluminum lever touchpoint.
Dedicated single-click variant required for E-MTB use.
Black XG-1275 features 10-52t range and full X-SYNC technology for best inboard and outboard shifting performance under load.
Full Mount Eagle 90 derailleur is the most rebuildable Eagle Transmission derailleur, with replaceable B-Knuckle, Inner/Outer Links, Bash Guards, Bushings, Cage, and Cage Assembly.
Includes GX Eagle Transmission Flattop chain with solid pins, fully approved E-MTB use.

Specifications
Activity: Cycling
Usage Bikesport: E-Bike, MTB
Shifting System (Manufacturer): SRAM
Gear Ratio: 10-12-14-16-18-21-24-28-32-38-44-52
Number of Gears - Front: 1
Number of Gears - Rear: 12
Shifting Type: Chain - Mechanical
Chain Line: 55 mm
Rear Derailleur Cage: Long
Rear Derailleur Max. Teeth: 52
Rear Derailleur Capacity: 42
Model Year: 2025
Collection: Full Year
Color: Black, Silver


Mfr Claimed Weight
TBC