Tougher. Smarter. Built for Boosted Riding.

Designed for the rigors of modern E-MTB, the SRAM Eagle 90 Transmission Groupset offers unmatched mechanical performance and reliability. With the same Full Mount derailleur design as SRAM’s electronic Transmission drivetrains, the Eagle 90 delivers crisp shifting under load and industry-leading durability—all tailored for SRAM/Brose motor platforms.

A forged aluminum E-MTB-specific crankset pairs with a Gap Cap-equipped chainring for a refined look and confident performance. Backed by the proven XS-1275 10-52T T-Type cassette, GX Flattop chain, and single-click shifter, this groupset is built to climb higher, descend harder, and go further.

Key Features

• 🔧 Full Mount Eagle 90 Rear Derailleur
  SRAM’s strongest mechanical derailleur—fully rebuildable with replaceable skid plates, links, bushings, and cage assembly.

• ⚙️ SRAM/Brose-Specific Crankset
  Forged aluminum arms with motor-optimized offset. Includes 104 BCD T-Type chainring, clip-on bash guard, and Gap Cap for a seamless finish.

• 🦾 XS-1275 T-Type 10-52T Cassette
  Full X-SYNC tooth profile enables smooth, load-resistant shifts across a wide 520% gear range.

• 🎯 Single-Click Shifter (E-MTB Optimized)
  T-Type cable actuation with stealth styling and ergonomic control. Designed to prevent double-shifting under power.

• 🔗 GX Eagle Transmission Flattop Chain
  Engineered for strength and E-MTB compatibility with solid pins and enhanced drivetrain engagement.

Compatibility

• UDH (Universal Derailleur Hanger) frame required

• SRAM/Brose motor systems

• DUB Wide spindle with 104 BCD chainring

What’s Included

• Eagle 90 Full Mount Rear Derailleur

• Eagle 90 Single-Click T-Type Shifter

• XS-1275 10-52T Cassette

• GX Eagle Transmission Flattop Chain (E-MTB rated)

• Eagle 90 Crankset (SRAM/Brose motor fit) w/ 104 BCD Chainring, Clip-on Bash Guard & Gap Cap

• Cable/hose clip for tidy cockpit setup

Shift under load. Ride with confidence. The Eagle 90 SRAM/Brose E-MTB Groupset delivers pro-level performance with mechanical simplicity.