SRAM RED XG-1290 12-Speed  Bicycle Casettes

SRAM’s lightest and most durable road cassette breaks new ground for gearing choices by perfectly balancing a wide gear range with the necessity of tight gear jumps. Designed for smooth, fast, and secure electronic shifting, these cassettes are essential whether you are racing on the road or building an all-road setup.

This system ensures you stay in the right gear, whether you are powering out of the saddle on steep climbs or making fine adjustments to maintain speed while approaching a sprint finish.

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Uncompromising Shifting Performance

The new range of SRAM RED Cassettes is optimized specifically for the speed and precision of the AXS electronic shifting system, ensuring reliability across every discipline.

• Gradual Gear Progression: Features gradual gear progression between cogs with at least five one-tooth jumps on the 10-28T, 10-30T, and 10-33T cassettes. This critical design choice keeps your cadence smooth and efficient. 

• Wider Range Options: The 10-tooth start helps provide a significantly wider gearing range without compromising the tight jumps needed for fine-tuning speed. 

• Electronic Optimization: Includes secure shift ramps specifically designed for flawless electronic shifting performance.

Construction and Compatibility

Durability and light weight are achieved through premium construction methods, ensuring maximum stiffness for efficient power transfer.

• Premium Construction: Utilizes a one-piece machined steel X-DOME design for maximum stiffness and significant weight savings. 

• XDR Compatibility: Designed exclusively to work with an XDR driver body, which is required to accommodate the 10-tooth small cog.

• New RED Options: The 10-30T and 10-36T cassettes are available in the RED series for the very first time, expanding gearing options for modern cycling.