Shimano ST-R8170 / BR-R8170 Ultegra Di2 Flat Mount Brakes (Take-Off)
SKU: 39717083050

Shimano ST-R8170 / BR-R8170 Ultegra Di2 Flat Mount Brakes (Take-Off)

Sale price$305.55 Regular price$339.50
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Shimano ST-R8170 / BR-R8170 Ultegra Di2 Flat Mount Brakes (Take-Off)Shimano's new ULTEGRA ST R8170 brake levers bring enhanced modulation and control to every ride by employing Shimano's proven SERVO WAVE technology. The all new Di2 platform, used on both DURA ACE and ULTEGRA, untethers the shifters while delivering our fastest, most reliable wireless shifting. Your time on the bike is precious, let Shimano make it even better. Features: & Benefits: Clean Cockpit: Wireless connection enhances the aerodynamic effect

Shimano's new ULTEGRA ST-R8170 brake levers bring enhanced modulation and control to every ride by employing Shimano's proven SERVO WAVE technology. The all-new Di2 platform, used on both DURA-ACE and ULTEGRA, untethers the shifters while delivering our fastest, most reliable wireless shifting. Your time on the bike is precious, let Shimano make it even better.

Features: & Benefits:

  • 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
  • Lighter, smoother lever action
  • Enhanced modulation thanks to an expanded braking control area
  • Compatible with wired and wireless connection
  • Available to additional satellite shifters
  • High electronic energy efficiency
  • 1.5 to 2 years of battery life with easy-to-change CR1632 shifter batteries (Initial shifter batteries may have a shorter battery life)

The ULTEGRA R8170 disc brake caliper brings a new level of control to the road cycling world with enhanced modulation and a quicker initial braking point. Despite its smaller construction, the system is quieter than ever and easier to maintain.

Features & Benefits:

  • 10% wider pad clearance decreases brake noise
  • Maintenance-friendly bleeding process

SKUs
Product Code: IR8170DLF6SC100F (Front)
Product Code: IR8170DRRDSC170F (Rear)

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 39717083050

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Amazon Customer
Waukegan, US
★★★★★ 5
Exceptional!
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Best socks I have ever worn. Already bought more.
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Reviewed in the United States on March 31, 2026
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Jakub Ontko
Alexandria, US
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everything ok
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everything ok
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Reviewed in the United States on June 2, 2026
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Shelley Young
Lowell, US
★★★★★ 5
Always soft
Size: Medium, Color: Black/Black/Black
Good fit, fast shipping. Love a new sock
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Reviewed in the United States on May 11, 2026
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Janet Fras
West Palm Beach, US
★★★★★ 5
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Size: Medium, Color: Black/Black/Black
Fit true to size
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Reviewed in the United States on January 12, 2026
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Madison R.
West Palm Beach, US
★★★★★ 5
Best no-show socks ever!
Size: 6-10, Color: Black
If you're tired of wearing socks that slip off and show in your sneakers, then you need to try these amazing socks! They are designed to stay in place, even after being active all day. They are incredibly soft and comfortable, and they are truly no-show, so you won't see them at all. I've been using these socks for years and have never had any issues. In fact, I love them so much that I've bought multiple packs, and my family members have started using them too. Don't waste any more time with those annoying socks that slip off and show - give these a try and you won't be disappointed!
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Reviewed in the United States on April 16, 2024

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