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 Deore XT BL-M8100 + BR-M8120 Enduro Trail I-Spec EV J-Kit disc brake set LordGun online bike store