This mechanical Eagle Transmission drivetrain delivers smooth, precise shifting under load with a durable Full Mount derailleur and serviceable design. A forged DUB crankset, T-Type chainring with bash guards, and wide-range cassette provide reliable performance and easy setup for trail and enduro riding.

Components Included

Eagle 90 Crankset

• Forged aluminum crankarms with 8-bolt T-Type chainring compatibility
• Multiple lengths available
• Dual removable composite bash guards
• Bash guards compatible with GX and X0 T-Type chainrings
• DUB Wide spindle for 55mm chainline

Specs

• Crank arm length: 165mm // 175mm
• Speeds: 12, 12s T-Type
• Chainline: 55mm
• Chainring: 32T DM
• BB Spindle Interface: DUB
• Weight: 825g
• SRAM Model ID: FC-90-A1

Eagle 90 Transmission Derailleur

• T-Type mechanical cable actuation for crisp, precise shifting
• Full Mount design for maximum strength and durabilit
• Highly serviceable construction with replaceable links, skid plates, and tool free cage assembly

Specs

• Speed (RD): 12
• Max tooth: 52
• Cage material: Aluminum
• Drivetrain Configuration: 1x
• Chain Technology: T-Type
• Weight: 395g
• SRAM Model ID: RD-90-A1

XS-1275 Eagle Transmission Cassette

• Full X-SYNC T-Type design for smooth, precise shifting under load
• Optimized 520 percent gear range with improved low-end steps
• 55mm chainline compatibility for better chain alignment
• Clearly marked Setup Cog for fast, error-free installation

Specs

• Speed (CS): 12
• Gearing: 10-52t: 10,12,14,16,18,21,24,28,32,38,44,52
• Chain Technology: T-Type
• Rear Derailleur Mount: Full Mount
• Weight: 445g
• SRAM Model ID: CS-XS-1275-A1

GX Eagle Transmission Flattop Chain

• Strongest SRAM chain ever
• Specifically engineered for Eagle Transmission
• Flattop profile, unbelievable shifting performance, game-changing aesthetics

Specs

• Speed (CN): 12
• Chain length: 126 links
• Chain connector: PowerLock 12s T-Type BLK
• Inner link finish: Chrome Hardened
• Outer link finish: Nickel
• Pin variant: Solid Pin
• Chain Technology: T-Type
• Weight: 285g (126links)
• SRAM Model ID: CN-TTYP-GX-A1

Eagle 90 Transmission Shifter

• Double-click mechanical actuation for precise shifting under load
• Premium textured aluminum shift lever with modern ergonomics
• Optimized cable friction management for consistent feel
• Clean cockpit design with integrated housing and brake hose clip

Specs

• Speeds: 12
• Cable pull ratio: T-Type Actuation
• Cable length: 220cm
• Shifter type: Trigger
• Clamp: Included
• Drivetrain Configuration: 1x
• SRAM Model ID: SL-90-A1

Technology

X-SYNC

SRAM X-SYNC 1x chainrings provide the highest level of performance and durability. The SRAM X-SYNC tall square teeth edges engage the chain earlier than traditional triangle shaped teeth. The sharp and narrow tooth profile, as well as rounded chamfer edges, help manage a deflected chain. To provide the best possible performance in muddy conditions, the X-SYNC chainrings have been designed with mud-clearing recesses for the inner chain links and rollers. Engineered in Germany, X-SYNC rings are an integral part of the SRAM 1x drivetrain. Accept no imitation.

EAGLE

Eagle technology represents our newest 1x drivetrain technology. Eagle is a lighter, simpler, more durable, and easier to use drivetrain. Eagle features all-new 1x components, engineered for even greater durability and performance while maintaining a significant weight advantage over other drivetrain solutions. Eagle technology also provides an expanded gear range of 520%, which is equal to 2x11 drivetrains.

FLATTOP

To enable X-Range gearing technology, we developed a narrower chain. The unique link shape of Flattop technology not only allowed for a wider gear range, but also results in quieter drivetrain operation and increased chain strength and durability.

MINI CLUSTER

The MINI CLUSTER hybrid cassette construction combines four small cogs that are CNC machined out of a single block of billet steel with an additional eight cogs that are individually pinned together. The result: a cassette that’s light, durable and equipped with a gear range that’s a perfect fit for any ride.

Specifications

• Guard: Included
• Tools: Not included
• SRAM Model ID: GS-90-A1