The SRAM XX DH Transmission CS‑XS‑797‑A1 is a specially designed cassette for competitive downhill riding, featuring extremely small steps (10–24T) that ensure proper cadence and acceleration out of each turn. Ideal for DH tracks where continuous speed changes are critical.

Features:

• Absolute precision in shifting, even under load, thanks to the Full X‑Sync tooth profile.
• Stable and reliable chain guidance.
• Excellent gear shifts, perfect for sprints and uneven terrain.
• A 7-speed cassette with teeth: 10, 12, 14, 16, 18, 21, 24, offering short ratios.
• Fast accelerations and controlled cadence with precise shifts.

Works only with compatible Transmission systems for maximum stiffness and accuracy. Includes Setup Cog for easy installation. Its construction provides long durability and secure chain contact, using materials such as steel for the sprockets and aluminum for the end‑ring, depending on the version. Its weight is approximately 151g, making it one of the lightest in the DH category.