SRAM XS-1275 T-Type Eagle 12-Speed Cassette Climb Like an Eagle If you're looking for top-tier drivetrain performance for your mountain bike, then you'll need Eagle. The SRAM XS-1275 T-Type Eagle Cassette offers the best-ever inboard and outboard shifting performance under load. With the X-SYNC design, the harder you pedal, the better it shifts. This cassette is designed for 55mm chain lines for less extreme chain angles throughout the full range and delivers more precision. Features520% range that has been optimized with larger 38 and 44T cogs for improved gear steps Combination Pindome and mini-cluster design X-SYNC design for exceptional shifting performance under load Specifications Cassette Body Type XS Cassette Cassette Cogs10, 12, 14, 16, 18, 21, 24, 28, 32, 38, 44, 52TDrivetrain Speeds12Cog Finish Silver Weight445 g | Sram | Xs-1275 Gx Eagle Transmission Cassette Am Cs Xs 1275 T-Type Eagle 10-52