Shimano Deore XT M8100 

 Following the principle of conveying the experiences and technologies of the superior series, Deore XT incorporates the innovations of cutting-edge XTR components. So the new 12-speed group set naturally features Micro Spline and Hyperglide +. 
 Shimano Deore XT CS-M8100 Cassette 

 The Shimano Deore XT CS-M8100 cassette features Hyperglide + technology that ensures high shifting speed, precision and smoothness when shifting up and down and contributes to an extremely quiet transmission system. 

 The 10 to 51 teeth cassette covers a wide range of gears. It has an aluminum spider construction and the two largest sprockets are made of aluminum as well. This not only reduces weight, but also improves robustness and longevity. 
 Hyperglide + 
 Conventional Hyperglide technology ensures smooth upward travel thanks to small travel ramps that guide the chain toward the next larger sprocket. Hyperglide + also uses this functionality, but also applies it in the opposite direction, preventing the current from falling when shifting down. The result is smooth, consistent travel in both directions, free from vibration and without interrupting cadence. 
 Micro spline 
 The evenly spaced 22-tooth aluminum freewheel keeps the cassette firmly under control for immediate response and also allows the use of a 10-tooth sprocket. In addition, smaller and compared to the usual Hyperglide freewheel bodies, more extensive changes prevent rotor damage.