Shimano XT CS-M8100 Cassette - 12-Speed 10-51t Silver/Black Micro Spline. The Shimano Deore XT CS-M8100 12-speed cassette is optimized with rider-tuned wide range and close step gear combinations for MTB excellence.

Shift ramp designs provide fast and smooth shifts by HYPERGLIDE technology

Light and stiff construction reduces cassette inertia resulting in faster acceleration and increased chain security

Designed with a Shimano Micro Spline body that features smaller and more widely distributed splines to limit cog damage on freehub

The CS-M8100 cassette meets durability requirements for E-MTB applications