Shimano Deore XT BR-M8100 XC Race Hydraulic Post Mount Disc Brake Caliper
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
Stone Chainring For 12s Shimano M9100 M8100 M7100 Oval 30t 32t 34 36 38t 12 Speed Direct Mount Chainwheel Mt900 8100 7100 M6100 - Bicycle Crank & Chainwheel - AliExpress