This is the Shimano Deore XT 12-Speed 10-51t Cassette.
With its BEAM SPIDER construction, the M8100 12-speed cassette shaves weight while increasing SHIMANO's MTB gearing range another gear. Using the MICRO SPLINE freehub body and HYPERGLIDE+ tooth profile, this 10-51T cassettes deliver advanced shifting performance.
- New shift ramp designs provide the fastest, smoothest shifts by HYPERGLIDE+
- High performance 12-speed Micro Spline MTB cassette
- Hyperglide sprockets have a computer designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load
- Close ratio gearing allows a more efficient use of energy through finer cadence control
- Beam Spider reduces cassette inertia resulting in faster acceleration, increased chain security and a lighter and stiffer construction
- Largest sprockets are mounted on lightweight alloy carriers to reduce weight and increase rigidity
- Sprockets are cut away and drilled to further reduce weight without reducing rigidity
- 10-51T wide ratio gearing allows a more efficient use of energy through finer cadence control in ever changing trail conditions
- Chrome-plated finish offers hard wearing resistance to corrosion
- Alloy cassette lockring
- For use with 12-speed MTB chains
- Average weight: 470 g