2025 FM4 ONIRII 4 Piston Flat Mount Hydraulic Disc Calipers Clamps Mineral Oil Aluminum CNC Thermal Brakes for Road Bicycle New 颜色:purple front personalized signature

personalized signature

Product real photo

①Clamp ring

Advantage 5: Quickly removable test cassette body makes post-maintenance easier

rotor rotation

2025 FM4 ONIRII 4 Piston Flat Mount Hydraulic Disc Calipers Clamps Mineral Oil Aluminum CNC Thermal Brakes for Road Bicycle New 颜色:purple front personalized signatureBrand: ONIRII Model: FM4 Version: 2025 Piston: 4 pistons Oil: Mineral oil Weight: 117. 5g (with screws) Hose length: front brake 70mm, rear brake 34mm Compatible rotors: 140 160mm Installation: Flat Mount For: road bike Parts Index: Caliper Brake pads Brake pad bolts Piston cover Connecting oil hose Provides plenty of braking power for downhill climbs Symmetrical 4 piston design with far more braking power than 2 piston design 7075 Aluminum alloy