SHIMANO XTR Cassette 12-speed CS-M9100-12 speed 10-51

Material Spider: aluminum
Material pinion: steel, titanium, aluminum
Grading: 10-12-14-16-18-21-24-28-33-39-45-51 teeth
Compatibility freehub body: Shimano Micro Spline | 12-speed
Compatibility Rear Derailleur: Shimano RD-M9100-SGS