Shimano Ultegra BR-R8170 front disc brake caliper, flat mount

The Ultegra flat mount caliper brings a quicker initial bite and finer modulation to road disc braking, in a smaller, quieter package. Wider pad clearance means less brake noise after a wheel change.

Highlights

  • Two-piston hydraulic disc brake caliper
  • Flat mount fitting, front
  • 10% wider pad clearance to reduce brake noise
  • L03A resin pads supplied
  • Maintenance-friendly bleeding process
  • Average weight 123 g, series colour

Control where it counts

The front brake does most of the stopping, so modulation matters more there than raw power. The R8170 gives a clear, early contact point and then meters power smoothly as you squeeze.

Compatibility and fit

For road frames and forks with a flat mount front brake fitting, used with Shimano road hydraulic levers and mineral oil. Supplied as a caliper, without lever, hose, rotor or mount adapter. Rotor size determines which adapter you need. If you are unsure what your fork takes, ask us before you order.

Shimano covers this brake under its standard warranty against defects in materials and workmanship. Normal wear is excluded, which on a hydraulic caliper includes brake pads and seals, along with damage from crash, incorrect bleeding or the use of the wrong fluid. Shimano road hydraulic brakes use mineral oil, never DOT fluid.

Warranty claims and returns go through Tune Cycles. Contact us with your order number and we will assess the part and handle the claim with the distributor on your behalf.

  • Shimano Ultegra hydraulic disc brake caliper
  • Two pistons
  • Flat mount, front
  • Wider pad clearance to reduce brake noise
  • L03A resin pads supplied
  • Average weight 123 g
  • Series colour
SeriesUltegra
TypeHydraulic disc brake caliper
Pistons2
Mount typeFlat mount
PositionFront
Pads suppliedL03A resin
Average weight123 g
ColourSeries colour
SKU SHM-IBRR8170F6RF
Barcode # 4550170889517
Brand Shimano