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Load image into Gallery viewer, Shimano-Ultegra-ST-R8170-Di2-12-Speed-Hydraulic-Brake-Shift-Lever-Hydraulic-Brake-Shift-Lever-Drop-Bar-Road-Bike-Time-Trial-Triathlon-Bike-Track-Bike-Road-Bike-Single-Speed-Fixie-HBSL0267
Load image into Gallery viewer, Shimano Ultegra ST-R8170-LF Di2 Shift/Brake Lever - Left, 2x, Black
Load image into Gallery viewer, Shimano Ultegra ST-R8170-LF Di2 Shift/Brake Lever - Left, 2x, Black

SKU: HBSL0267

Shimano Ultegra ST-R8170-LF Di2 Wireless Electronic Shift/Brake Lever - Left, Hydraulic, 12-Speed, Double, Carbon Steel & Aluminum Construction, Optimized Ergonomics, SERVO-WAVE Technology, Flat Mount Compatibility, Black

Regular price $460.00
$511.95 Sale price $460.00 Regular price
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Description
Specifications

Experience superior control and cutting-edge technology with the Shimano Ultegra ST-R8170-LF Di2 Wireless Shift/Brake Lever - Left. Designed for serious road cyclists and race enthusiasts, this high-performance component combines precision engineering, innovative features, and sleek style to elevate your cycling experience.

Materials & Construction:

Crafted from lightweight, durable materials, the Shimano Ultegra ST-R8170 lever features a robust aluminum body with a sleek black finish that complements any aero or race bike setup. The hydraulic brake system utilizes mineral oil for smooth, consistent stopping power and reliability under various riding conditions.

Performance & Engineering:

Powered by Shimano's renowned SERVO-WAVE technology, this lever offers exceptional modulation and responsiveness, allowing for precise brake control even at high speeds. The hydraulic actuation provides light, smooth lever feel with optimized braking power, ensuring confidence on descents, in sprints, or during demanding climbs. Its ergonomic design, refined through feedback from professional riders, enhances comfort and reduces fatigue, making it ideal for long miles.

Components & Technology:

The Ultegra Di2 ST-R8170-LF supports the Shimano Di2 electronic shifting platform, delivering lightning-fast, reliable wireless shifting that eliminates cable clutter for a clean cockpit. Compatible with both wireless and wired connections, it offers seamless integration with your Shimano Di2 groupset, supporting up to 12 speeds. The shifter is energy-efficient, boasting a battery life of up to 2 years with CR1632 batteries, and can be paired with additional satellite shifters for expanded gear control.

Style & Use Case:

Designed for performance-oriented road cycling, this left-side shift/brake lever suits double chainring setups on flat-mount brake calipers. Its aggressive black aesthetic and raised hood peaks provide a sleek, aerodynamic profile, making it perfect for competitive racing, triathlons, or demanding training sessions. The adjustable reach feature ensures personalized fit and comfort, catering to riders of various hand sizes.

Innovative Features & Differentiators:

- Wireless connectivity for a tidy cockpit, improved aerodynamics, and minimal maintenance

- Expanded brake modulation area for enhanced control during braking

- Compatible with both wireless and wired Shimano Di2 systems for flexible setup options

- High electronic energy efficiency supporting long battery life (up to 2 years)

- Raised hood peaks and refined ergonomics for superior handling and comfort

Upgrade your road bike with the Shimano Ultegra ST-R8170-LF Di2 Left Shift/Brake Lever and experience the perfect blend of technology, style, and performance. Conquer every ride with confidence, precision, and a sleek, aerodynamic look.

  • Enhanced modulation and precise control with Shimano's SERVO-WAVE technology, delivering smooth, responsive braking for competitive and recreational road cycling.
  • Wireless Di2 integration ensures a clutter-free cockpit, improving aerodynamics and simplifying maintenance for a sleek, modern look.
  • Ergonomically refined with feedback from professional riders, featuring raised hood peaks and light, smooth lever action for maximum comfort during long rides and intense sprints.
  • Compatible with 12-speed Shimano Di2 road systems and supporting both wireless and wired connections, offering versatile setup options and future-proof performance.
  • Durable hydraulic brake lever with mineral oil, adjustable reach, and organic pad compatibility, engineered for reliable stopping power and consistent performance in all riding conditions.
Brake Lever ActuationHydraulic
Double or TripleDouble
Rotor IncludedNo
Brake Caliper MountFlat Mount
Brake Lever UseLeft
Rear Der/Shifter CompatibilityShimano Road Di2
Drivetrain Speeds12
Front Der/Shifter CompatibilityShimano Road Di2
ColorBlack
Hydraulic Fluid TypeMineral Oil
Pad CompoundOrganic
Hydraulic Hose Length1000
Adjustable ReachYes
Defined ColorBlack
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We pride ourselves on our ability to ship and deliver your gear with excessive speed! We ship from 22 locations throughout the United States and most orders will arrive in 3 days or less with Free Shipping on orders over $75!

The nitty gritty, for specific delivery timelines please pay attention to the delivery timelines on the product pages and the time frame estimated in the carts. If you need a part by a specific day, please contact us by chat, phone, or

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Most orders placed during the workweek before 1:00 PM Eastern time ship the same day, but during peak/holiday season or depending on inventory location handling time can take up to 48 hours. If you have questions regarding shipping estimates, don't hesitate to get in touch with us before placing the order. There is a direct signature requirement for all orders over $500.

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If you need to return your order please email us at info@365cycles.com, call us at 603-968-5797, or use the live chat on our site.

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365 Cycles puts the customer above everything. Our number one goal is your satisfaction. When you press the shift lever you want the gears to shift, and when you buy bicycle parts, you want the bicycle parts to arrive on time in new condition. With over 60,000 products and 22 warehouse locations throughout the country, we have the parts you need and they are coming in hot!

Living an active lifestyle is just that, a lifestyle that never goes away and our goal is to always exceed your expectations so we can take this lifelong journey together. We strive to have the parts you need, at competitive prices with unmatched shipping speeds!

If there is ever an issue with an order we will work at warp speed to fix our mistake and make sure you never go a day without a bicycle! If you are not receiving the quality of service you need from one of our exceptionally qualified bicycle experts, tell them Ben Berman told you to tell them "Customer Loyalty" and then name your terms.

Our team is waiting to help you 7 days a week and they are more qualified to help than I am but if you ever feel like you're not getting the service you need I’m personally asking you to email me at ben@365cycles.com with "CUSTOMER LOYALTY" in the title and I will personally handle your order.

Over the years we have served millions of satisfied customers and continue to serve many of them today. With your feedback, we are confident we can take this lifelong journey together and build a friendship that goes beyond parts and accessories.

“If you want to go fast, go alone, if you want to go far, go together.” -Someone Smart

Ben Berman Founder & CEO of 365 Cycles


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These were established by the members of our team and we use them every week to call out team members who have shined in one of these areas. Feel free to let us know at info@365cycles.com if someone you worked with has gone above and beyond in one of these areas. 

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