SRAM RED XPLR E1 13 Speed Cassette

The SRAM RED XPLR E1 13 Speed Cassette is SRAM’s most advanced gravel cassette, engineered to deliver massive gear range, tight cadence control, and elite-level shifting performance. Designed specifically for the XPLR 1x 13-speed ecosystem, it provides a 460% range with minimal jumps between gears, enabling riders to maintain efficiency across steep climbs and high-speed gravel sectors.

Key Features & Benefits

460% Wide-Range Gearing (10-46T)
Delivers one of the widest usable ranges in a performance drivetrain, allowing riders to climb aggressively while still maintaining high-speed gearing on fast sections.

13-Speed Cadence Optimization
Adds an extra gear compared to 12-speed systems, reducing gaps between cogs for smoother cadence transitions and more efficient power delivery across varied terrain.

XG One-Piece Machined Construction
Machined from a single block of steel for improved stiffness and durability, resulting in precise shifting performance and long-term wear resistance.

Optimized Shift Ramps for Rough Terrain
Each cog is individually tuned for electronic shifting under load, ensuring clean, reliable gear changes even on washboard gravel or steep climbs.

Lightweight for Its Range (~288g)
Despite its wide range, the cassette remains exceptionally light, helping maintain low rotational mass and responsive acceleration.

XDR Driver Body Compatibility
Fits SRAM XDR freehub bodies, enabling compact 10T starting cog and expanded overall range without oversized chainrings.

Flattop Chain Compatibility
Designed for SRAM Flattop chains, ensuring quiet operation, reduced friction, and improved drivetrain longevity.

Technical Specifications

• Drivetrain Compatibility: SRAM XPLR AXS 13-speed
• Cassette Range: 10-46T
• Gear Steps: 10,11,12,13,15,17,19,21,24,28,32,38,46
• Total Range: 460%
• Speed: 13-speed
• Driver Body: XDR
• Construction: One-piece machined steel (XG technology)
• Weight: ~288g
• Configuration: 1x only
• Chain Compatibility: SRAM Flattop (D1 / E1)
• Use Case: Gravel racing, endurance gravel, all-road performance