SRAM Cassette XS-1297 T-Type Eagle 10-52t 2023: 10-52T

SRAM XS-1297 T-Type Eagle Cassette 10-52t – Shift Hard, Shift Clean

The SRAM XS-1297 T-Type Eagle Cassette is the drivetrain component at the heart of SRAM’s Eagle Transmission system, engineered to deliver what SRAM describe as their best-ever inboard and outboard shifting performance under load.

What It Does

The full X-Sync tooth profile means shifting performance improves the harder you pedal – a genuine mechanical advantage on steep, technical climbs where chain retention and clean shifts matter most. The 520% gear range spans 10–52 teeth, with an improved low-end gear progression featuring 44t and 38t steps (compared to the standard Eagle 10–52t cassette). This refined progression reduces the use of extreme chain angles across the full range, which SRAM state contributes to longer component life and improved precision throughout.

Technical Insight

• Range: 10–52t with 12 speeds
• System: SRAM Eagle T-Type Transmission – derailleur and cassette contact directly for guaranteed alignment
• Construction: Hardened tool steel machined X-Dome cluster design
• Install: Features a clearly marked Setup Cog for straightforward, fool-proof fitting
• Part number: FW8125000

Compatibility

This cassette is designed as part of the integrated SRAM Eagle T-Type Transmission ecosystem. It is intended for use with compatible T-Type Eagle derailleurs and components. Check SRAM’s current compatibility documentation before ordering if you are unsure whether your existing drivetrain is T-Type compatible.

Why Torque Collective Stock This

The T-Type cassette’s direct derailleur contact and X-Sync design make it a strong choice for eMTB and trail riders who demand reliable shifts under power. The improved low-end progression and reduced chain angle extremes are practical benefits on the kind of technical, loaded climbing that Essex trails and beyond demand. It’s a workshop-sensible upgrade for anyone already running or building a T-Type drivetrain.