Cassette. Speeds: 12. Teeth: 10-51. With its BEAM SPIDER construction, the new SHIMANO DEORE XT M8100 12-speed cassette shaves weight while increasing SHIMANO's MTB gearing range another gear. Using SHIMANO's new MICRO SPLINE freehub body and HYPERGLIDE+ tooth profile, these 10-45 and 10-51T cassettes deliver advanced shifting performance.
- 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
