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Ultegra BR-R8170 Disc Brake Caliper

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Why We Like The Ultegra BR-R8170 Disc Brake Caliper

To the delight of riders and mechanics alike, the new Ultegra BR-R8170 caliper delivers enhanced modulation, a quieter brake system, and an easier-than-ever bleed process.

The Ultegra R8170 disc brake caliper brings a new level of control to the road cycling world with enhanced modulation and a quicker initial braking point. Despite its smaller construction, the system is quieter than ever and easier to maintain.


  • Ultegra hydraulic calipers for the new 12-speed road group
  • 10% wider pad clearance reduces braking noises
  • Bleed process is easier than before
  • Item #SHIU1F1
Caliper Type
2-piston hydraulic
Mount Type
flat mount
Shimano Mineral Oil
[levers] Ultegra R8170 Di2 Shift/Brake levers, [pads] Shimano L04C, Ko3S, or L03A
bleed block, 2 mounting bolts, 2 brake pads
Claimed Weight
[front] 146g, [rear] 136g
road cycling
Manufacturer Warranty
2 years