Amazon.com: SHIMANO Deore XT BL-M8100/BR-M8120 Disc Brake and Lever - Front, Hydraulic, Post Mount, 4-Piston, Finned Metal Pads, Black : Sports & Outdoors
Shimano XT 12 Speed Groupset Review
12-Speed Shimano XT Review: Lessons After 2,500 Miles - BIKEPACKING.com