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

• NX Eagle DUB Crankset
  
  Eagle inspired crankset delivering reliable performance and clean styling
• X-SYNC 2 chainring compatibility for quiet, secure chain retention
• Optimized tooth profile for efficient power transfer and reduced noise
• DUB spindle design for improved durability, sealing, and fit compatibility

Specs

• Crank arm length: 170mm
• Speeds: 12
• Chainring: 32T DM
• BB Spindle Interface: DUB
• Weight: 638g
• SRAM Model ID: FC-NX-1-C1
• NX Eagle Transmission Derailleur
  
  X-HORIZON design for precise, consistent 1x shifting
• 14-tooth X-SYNC lower pulley for smooth pedaling and wide cassette compatibility
• Supports 10-50T and 11-50T Eagle cassettes
• Type 3 Roller Bearing Clutch for quiet, stable chain control

Specs

• Speed (RD): 12
• Max tooth: 50
• Cage material: Steel
• Chain Technology: Eagle
• Drivetrain Configuration: 1x
• Weight: 339g
• SRAM Model ID: RD-NX-1-B1
• PG-1230 Eagle Transmission Cassette
  
  Wide 11-50T gear range for versatile trail and mountain riding
• Optimized gear steps for smooth cadence transitions
• Compatible with standard splined driver bodies
• Designed to integrate seamlessly with SRAM Eagle drivetrains

Specs

• Speed (CS): 12
• Gearing: 10-52t: 11,13,15,17,19,22,25,28,32,36,42,50
• Chain Technology: Eagle
• Rear Derailleur Mount: Full Mount
• Weight: 615g
• SRAM Model ID: CS-PG-1230-A1
• NX Eagle Transmission Chain
  
  Fully compatible with all SRAM Eagle drivetrain components
• Solid pin construction for long lasting durability
• Eagle PowerLock connecting link for easy installation
• Smooth, reliable shifting performance on every ride

Specs

• Speed (CN): 12
• Chain length: 126 links
• Chain connector: PowerLock
• Inner link finish: Polished
• Outer link finish: Polished
• Pin variant: Solid Pin
• Chain Technology: Eagle
• Weight: 252g (114links)
• SRAM Model ID: CN-EAGL-NX-A1
• Eagle 90 Transmission Shifter
  
  Trigger shifter designed for wide range Eagle cassettes
• Smooth, on-demand gear changes across the full gear range
• Easy, intuitive operation for consistent shifting
• Reliable performance for trail and everyday riding

Specs

• Speeds: 12
• Cable pull ratio: X-Actuation
• Cable length: 220cm
• Shifter type: Trigger
• Clamp: Included
• Drivetrain Configuration: 1x
• SRAM Model ID: SL-NX-1-B1

Technology

X-ACTUATION

Developed specifically for SRAM 1x, X-ACTUATION keeps shifting sharp and consistent across the entire cassette.

EALGE

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.

ZERO LOSS

ZERO LOSS simply means, well, zero loss—when you push on the lever, for an upshift or down shift, the cable is engaged instantly—zero loss of movement. There is no middle-ground where you're waiting for the shift to come. Gear changes are instant and precise.

PowerLock

SRAM chain engineers developed PowerLock as a tool free, sure, and consistent way to connect our chains. While PL does not require special tools for install, the especially tight tolerances of 10- and 11-speed drivetrains mandate that each PowerLock is good for a one-time application only.

FLOWLINK

Ultra-smooth chain inner-plates are completely devoid of square edges, resulting in a chain that engages the cassette and chainring with far less friction, for quieter performance and better wear life. The design allows a narrower overall profile that can withstand greater angles, and also allows for a flatter outer-plate, which means more consistent chain riveting and enhanced overall strength.

Specifications

• Tools: Not included
• SRAM Model ID: GS-NX-1-A1