Shimano, Tiagra ST-R4720-R / BR-4770-R, Road Hydraulic Disc Brake, Rear, Flat mount, Not included, Grey, Set

Shimano, GRX Di2 ST-RX815-R / BR-RX810-R, Road Hydraulic Disc Brake, Rear, 11 speed, Flat mount, 140 or 160mm (not included), Black, Set

SRAM, DB4 A1, MTB Hydraulic Disc Brake, Right, Post mount, Black

SRAM, G2 RS A2, MTB Hydraulic Disc Brake, Front, Post mount, Disc: Not included, Black

SRAM, Red, Pre-assembled hydraulic road disc brake, Rear, 11sp, Post Mount