Sram Eagle XG-1275 Cassette - C1 - 12-Speed - Black

The SRAM GX Eagle XG-1275 cassette (C1 Series) offers a 520% gear range (in the 10-52 version) and the high-end shifting performance of Eagle technology at an accessible price for all your Trail, Enduro, and e-MTB rides. Built with FULL PIN™ technology, it combines exceptional strength, optimal mud clearance, and outstanding durability so you can tackle the toughest climbs with confidence.

SRAM GX Eagle XG-1275 C1 Cassette Highlights

• 520% gear range: The 52-tooth cog offers an ideal gear ratio for conquering the steepest climbs without wearing yourself out.
• Ultra-strong FULL PIN™ design: Eleven forged steel cogs assembled with strong stainless steel rivets for maximum rigidity and longevity.
• X-GLIDE™2 shifting: Optimized tooth profiles deliver fast, precise, quiet shifting across the entire cassette range, even under heavy load.
• Maximum mud clearance: Open design helps prevent dirt and debris buildup for smooth operation in extreme conditions.
• XD™ freehub body compatibility: Secure hub engagement for direct power transfer without damaging the cassette body.
• E-Bike approved: Designed to withstand the high torque generated by electric-assist mountain bikes.

Technical Specifications

• Speeds: 12-speed.
• Cog progression:
    - 10-52T (10, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 52)
    - 10-50T (10, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 50)
• Drivetrain technology: SRAM Eagle & X-GLIDE™2.
• Hub / cassette body interface: SRAM XD™ only.
• Manufacturer weight: 452 g.
• Electric mountain bike compatibility: Yes, E-Bike Approved.

Construction and Materials

• 10-42T cogs: High-strength stamped steel (Black finish)
• 52T cog: 7075-T6 aluminum (Black finish)
• Assembly: Stainless steel rivets (FULL PIN™ technology)

Maintenance Tips

• Clean the cassette regularly with a suitable degreaser and a drivetrain brush.
• Check your chain for wear regularly to prevent premature wear on the cassette cogs.

Compatibility and Installation

For optimal performance from your Eagle 10-52T drivetrain, be sure to follow SRAM compatibility specifications.

• Rear derailleur: Compatible only with SRAM Eagle 12-speed derailleurs designed for a 52T cog (or Eagle AXS derailleurs).
• Chain: Works with all 12-speed chains in the SRAM Eagle ecosystem (GX, X01, XX1, S100, S200), except Flat Top Type models
• Freehub body: Requires a SRAM XD™ cassette body. Not compatible with Shimano HG or Micro Spline bodies.

Drivetrain Adjustment

• B-Gap alignment tool: Use the SRAM Eagle chain setup tool included with your derailleur to adjust the gap at the 52T cog.
• Chain length: Be sure to adjust the chain length according to the manufacturer's recommendations when switching to a 52-tooth cog.