Rebuildable. Reliable. Ready for E-MTB.

SRAM’s Eagle 90 E-Bike Groupset delivers uncompromising mechanical performance for aggressive e-MTB riders. With the same Full Mount architecture as its AXS counterparts, this groupset is built to withstand serious torque and trail abuse. The derailleur is not only the most robust SRAM has ever made—it’s also the most rebuildable, with replaceable links, bash guards, and a tool-free cage assembly.

Tailored for modern E-MTB systems, it includes a drive-unit-specific crankset with a 104 BCD T-Type chainring, forged for durability and optimized for a seamless look with Gap Cap compatibility (SRAM/Brose & Bosch variants available).

Key Features

• ⚙️ Full Mount Derailleur Design
  Max strength and durability with a modular design—replaceable B-knuckle, cage, skid plates, and links.

• ⚙️ XS-1275 T-Type 10-52T Cassette
  Full X-SYNC shifting technology for smooth, precise shifts under full motor-assisted load.

• ⚙️ E-MTB Specific Crankset
  Forged aluminum arms with drive-unit-matched offsets and a 104 BCD steel chainring. Includes clip-on guard and Gap Cap for clean aesthetics.

• ⚙️ Dedicated Single-Click Shifter
  T-Type actuation and stealth-style ergonomic design. Single-click shifting to reduce chain wear on E-MTBs. MMX compatible for clean cockpit integration.

• ⚙️ GX Eagle Transmission Flattop Chain
  Engineered for transmission systems, solid pins for E-MTB durability and consistent power transfer.

Compatibility

• UDH (Universal Derailleur Hanger) frame required

• SRAM/Brose and Bosch motor compatibility options

• DUB interface with 104 BCD chainring

What’s Included

• Eagle 90 Full Mount Rear Derailleur

• Eagle 90 Single-Click Shifter

• XS-1275 T-Type 10-52T Cassette

• GX Eagle Flattop Chain (E-MTB approved)

• Eagle 90 E-MTB Crankset (motor-specific) w/ 104 BCD Chainring + Clip-on Guard + Gap Cap

• Shift Housing/Brake Hose Clip

Mechanical shifting meets motorized muscle. Built for torque, tuned for terrain—Eagle 90 takes E-MTB drivetrains to the next level.