- T-Type compatible, 10-52t 12 speed cassette - Splined 8, 9, 10 Speed driver body compatible - 55mm chainline - compatibility for more moderate chain angle, longer wear, and greater precision - Approved for aluminum driver body use as well as steel on both MTB and E-MTB applications - Full X-SYNC design for best-ever inboard and outboard shifting performance under load - Gears 8-12 are a replaceable cluster - Unique black nickel chrome finish