Shimano Ultegra ST-R8170A Di2 Shift/Brake Lever BR-R8170 Hydraulic Disc Brake Caliper - Left/Front 2x Flat Mount BLK
Shimano

Shimano Ultegra ST-R8170A Di2 Shift/Brake Lever BR-R8170 Hydraulic Disc Brake Caliper - Left/Front 2x Flat Mount BLK

$536.99
/
Shipping calculated at checkout.
  • Free Domestic shipping
  • In stock, ready to ship
  • Backordered, shipping soon
Your time on the bike is precious let Shimano make it even better. Ultegra ST-R8170 brake levers bring enhanced modulation and control to every ride by employing Shimano's proven SERVO-WAVE technology. The Di2 platform untethers the shifters while delivering fast and reliable wireless shifting. The BR-R8170 hydraulic 2-piston disc brake caliper brings a new level of control to the road cycling world with improved modulation and a quicker initial braking point. Despite its smaller construction the system is quieter than ever and easier to maintain.
  • The wireless connection provides a clean cockpit enhancing the aerodynamic effect and easy maintenance
  • Wider pad clearance decreases brake noise
  • Maintenance-friendly bleeding process
  • Unparalelled ergonomic features such as raised hood peaks on levers
  • Brake control is optimized with light and smooth lever action
  • Enhanced modulation thanks to an expanded braking control area
  • Compatible with wireless or wired connection
    Brake Lever Actuation Hydraulic
    Rotor Included No
    Brake Caliper Mount Flat Mount
    Brake Lever Use Left
    Drivetrain Speeds 12
    Front Der/Shifter Compatibility Shimano Road Di2
    Color Black
    Hydraulic Fluid Type Mineral Oil
    Pad Compound Resin
    Hydraulic Hose Length 1000
    Defined Color Black
    Side Left/Front

    • Shipping Policy

    Components:

    All component items (wheels, drivetrains, suspension, brakes, etc.) ship within 1–4 business days of purchase.

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    Complete bikes typically ship within 2–3 weeks due to build, tuning, and inspection times. You will receive tracking information as soon as your order is ready to ship.

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    Every bike that leaves our shop is more than just a machine—it’s a promise of quality. From the moment you choose your ride, our expert team gets to work, hand-building and prepping each bike with precision. We meticulously inspect every component, fine-tune the details, and run thorough safety checks to ensure everything is dialed in perfectly. Because when you hit the road or trail, you deserve a bike that’s ready for anything.

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    At SpokeX Bike Co., bikes aren't just our business — they’re our way of life. As a rider-owned and operated shop, every decision we make comes from firsthand experience on the trail, at the race, and on the open road. We know what it’s like to chase a new line, push through the pain cave, and celebrate the ride — because we live it every day.

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