Shimano Ultegra ST-R8170 Di2 Shifter/Disc Brake Lever

Backorder: This item is currently out of stock but is available to purchase today as a backorder. The expected availability date shown above is our best estimate as to when it will be shipped to you, but this date is subject to change based on our receipt of this item from its vendor. Shipping in the continental US is free for all backorder items (for international orders, our customer service team will contact you when the item is available to ship). Your credit card will not be charged until your item ships (Paypal requires payment up front, but you can cancel for full refund). Anytime prior to shipment, your backorder can be cancelled by contacting our customer service team.

Even-Faster Shifts & More Controlled Disc Braking

Ultegra ST-R8170 Di2 Shifter/Disc Brake Levers have all-new ergonomics, precise brake modulation, and wireless electronic shifting. With even-faster shifts, more controllable braking, an updated lever shape, and a very long battery life, these new shifters reset the industry standard, all at a more affordable price than Dura-Ace models.

Shimano’s new ST-R8170 brake levers bring enhanced modulation and control to every ride by employing Shimano’s proven SERVO WAVE variable-ratio brake lever design.

A new Shimano E-Tube Project App (version 4.0.0) offers intuitive operations for personalizing the Ultegra R8100 drivetrain. Offering a suite of customizable, riders can choose between different shift speeds, customize shift button mapping (what buttons perform which functions), program different automatic shift modes like Synchro and Semi-Synchro shifts, fine-tune shifting, and connect with third party bike computers.

Features

• Clean Cockpit: Wireless connection enhances the aerodynamic effect and easy maintenance
• Unparalleled ergonomics engineering refined with pros’ feedback
• Raised hood peak improves ergonomics
• Optimized brake control with lighter, smoother lever action
• Enhanced modulation thanks to an expanded braking control area
• Compatible with wired and wireless connection
• High electronic energy efficiency
• 1.5 to 2 years of battery life with easy-to-change CR1632 shifter batteries
• Weight: 391g (/pair)

The product weight specified is an approximate weight based on the manufacturer’s specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%.

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Specifications