The SRAM XX SL Eagle T-Type XS-1299 Cassette: A key contributor to the exceptional inboard and outboard shifting performance of the Eagle Transmission. Its full X-SYNC design ensures smoother shifts with increased pedaling effort. This is SRAM's lightest and most precise Eagle cassette, featuring a fully machined steel X-Dome structure for gears 1-9 and a lightweight aluminum Spider Cog for gears 10-12. The XX Eagle Transmission Cassette and derailleur work seamlessly as integrated components, guaranteeing perfect alignment on any bike.

With a wide 520% gear range, it offers improved gear progression in the low end with 44 and 38 tooth cogs. The new-gen design is SRAM's lightest 10-52t cassette, thanks to the ultra-lightweight aluminum Spider Cog. It also provides a 55mm chainline for extended wear and precision, and it's compatible with the widely available XD driver body. Plus, the Setup Cog is clearly marked for easy installation. Note that it's not suitable for E-MTB use.