The GX Eagle T-Type 12-Speed Cassette is a key reason why Eagle Transmission offers the best-ever inboard and outboard shifting performance under load. Thanks to its full X-SYNC design, the harder you pedal, the better it shifts. From its massive 520% gear range, the 52 tooth cog steps down with improved gear progression with 38 and 44 tooth cogs in the low end (compared to the Eagle drivetrain 10-52-tooth cassette). 55mm chainline compatibility for more moderate chain angle, longer wear and greater precision. Featuring a clearly marked Setup Cog, install is both simple and fool-proof. Utilizes a Pindome design for gears 1-8 and a single piece mini-cluster for gears 9-12. Nickel plating delivers top-tier durability as well as a quiet shift experience. Compatible with the well accepted and broadly available XD driver body. Item Specifications: Range: 10-52, Cogs: 10-12-14-16-18-21-24-28-32-38-44-52, Cassette Body Type: SRAM XD, Drivetrain Speeds: 12, Color: Black/Silver, Weight: 445, Defined Color: Black, Defined Color: Silver,