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
Amazon.com : SHIMANO XT RD-M8100-GS Rear Derailleur - 12-Speed, Medium Cage, Black : Sports & Outdoors