Avid, BB5 MTB, Mechanical disc brake, Grey, Front or rear, No rotor, No adapter

Shimano, XT BL-M8200 / BR-M8220 Kit, MTB Hydraulic Disc Brake, Front and Rear, Flat mount, Disc: Not included, Black, IBRM8220UPGKIT1

Avid, BB5 Road, Mechanical disc brake, Front or rear, 160mm, Grey

SRAM, Motive Silver A1, MTB Hydraulic Disc Brake, Front, Post mount, Black

Shimano, GRX BR-RX820, Road Hydraulic Disc Brake, Rear, Flat mount, 140 or 160mm (not included), 140g