Photo 1 of DYISLAND E-Bike Hydraulic Disc Brake Set 4-Pistons/2-Pistons, 2-PIN/3-PIN Pre-Bled with Mineral Oil Brakes Kit?Front and Rear Set?180mm 2.3mm Thick Rotors (Black/4-Pistons/3-PIN/Rear only Set)

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Photo 1 of DYISLAND E-Bike Hydraulic Disc Brake Set 4-Pistons/2-Pistons, 2-PIN/3-PIN Pre-Bled with Mineral Oil Brakes Kit?Front and Rear Set?180mm 2.3mm Thick Rotors (Black/4-Pistons/3-PIN/Rear only Set)Photo 2 of DYISLAND E-Bike Hydraulic Disc Brake Set 4-Pistons/2-Pistons, 2-PIN/3-PIN Pre-Bled with Mineral Oil Brakes Kit?Front and Rear Set?180mm 2.3mm Thick Rotors (Black/4-Pistons/3-PIN/Rear only Set)