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 BR-M8120 Disc Brake - Components
Shimano Deore XT BL-M8100/BR-M8100 Disc Brake and Lever - Front, | Worldwide Cyclery
Shimano XT M8100 four-piston brakes on test – Where there is lots of light, there are also shadows | ENDURO Mountainbike Magazine