Shimano CS-M8100 12 Speed XT Cassette

・Definitive shifting performance
- New shift ramp designs provide the fastest, smoothest shifts by HYPERGLIDE+
- BEAM SPIDER
- Lighter and stiffer construction
- Reduces cassette inertia resulting in faster acceleration and increased chain security
- MICRO SPLINE
- 10T lowest sprocket realized by new FREEHUB body construction
- Wide range and close step 12-speed drivetrain