Shimano ST-R8170-L Ultegra Di2/Hydraulic Brake/Shifter Lever – Wireless Control and Pro-Level Performance
Advanced ergonomics, modular hydraulic braking, and next-generation wireless Di2 technology
The Shimano ULTEGRA ST-R8170-L Di2 left brake/shifter lever represents the advanced standard for high-performance road cycling, integrating high-modulation hydraulic braking and the fastest and most reliable wireless electronic shifting ever made by Shimano. Based on the same Di2 platform as the DURA-ACE series, it offers optimized ergonomics, greater efficiency, and a clean and aerodynamic cockpit, ideal for modern and minimalist racing bikes.
SERVO WAVE™ and Wireless Di2 Technology: uncompromising performance
The left lever ST-R8170-L Ultegra Di2 improves braking response thanks to the innovative SERVO WAVE™ technology, offering a smoother and more precise action, with a wider control zone for optimal modulation. All this with the simplicity and efficiency of wireless connection, which reduces wiring and improves maintenance.
Main Technical Features
SKU specifications:
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Clean and aerodynamic cockpit
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Unmatched ergonomics, developed with professionals
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Optimized hydraulic braking
Lighter and smoother lever action, perfect even on long descents
Better brake modulation thanks to an expanded control area
Greater precision even in wet conditions or technical descents
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Di2 electronic shifting
Compatible with both wireless and wired connections
Option to add satellite shifter controls for advanced configurations
Technology shared with Shimano DURA-ACE Di2 for top-level performance
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Improved energy efficiency
Easy-to-replace CR1632 batteries
Battery life from 1.5 to 2 years, ideal for intensive use and long distances
Why choose the Shimano Ultegra ST-R8170-L Di2 lever?
Compatible with Shimano ULTEGRA R8100 Di2 groupsets
Designed to maximize control and comfort
Performance worthy of a professional bike, with precise and responsive electronic shifting
Optimized design for modern aerodynamic road bikes
Perfect for integration with hydraulic disc brakes and Di2 systems
