The T-Type cassette is a key reason why GX Eagle Transmission offers incredible inboard and outboard shifting performance under load. Thanks to its full X-SYNC design, the harder you pedal, the better it shifts. The nickel plating delivers top-tier durability as well as a quiet shift experience. Featuring 55mm chainline compatibility for a more moderate chain angle, longer wear, and improved precision. It&';s 520% range has optimized gear steps featuring larger 38 and 44-teeth cogs. With the clearly marked "Setup Cog", installation is both simple and foolproof. The cassette utilizes a PinDome design for gears 1-8 and a single-piece MINI-CLUSTER for gears 9-12. - T-Type compatibility- X-SYNC for best-ever inboard and outboard shifting performance under load- 520% range with optimized gear steps on low-end- 55mm chainline compatibility for a more moderate chain angle, longer wear, and greater precision- Setup Cog for simple setup procedure- Nickel plating for a quieter and more durable cassette