# Shimano Ultegra ST-R8170F Di2 Shift/Brake Lever BR-R8170 Hydraulic Disc Brake Caliper - Right/Rear 12-Speed Flat Mount BLK

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
    
    Right
    
    Rear Der/Shifter Compatibility
    
    Shimano Road Di2
    
    Drivetrain Speeds
    
    12
    
    Front Der/Shifter Compatibility
    
    Shimano Road Di2
    
    Color
    
    Black
    
    Hydraulic Fluid Type
    
    Mineral Oil
    
    Pad Compound
    
    Organic
    
    Hydraulic Hose Length
    
    1700
    
    Adjustable Reach
    
    Yes
    
    Defined Color
    
    Black
    
    Side
    
    Right/Rear

## Details

- **Price:** 605.0 USD
- **Vendor:** Gio's Outdoors
- **Type:** Brake/Shift Lever - Drop Bar
- **Tags:** Gio's Outdoors, Shopify Collective

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 605.00 USD | In stock |

## Images

- Shimano Ultegra ST-R8170F Di2 Shift/Brake Lever BR-R8170 Hydraulic Disc Brake Caliper - Right/Rear 12-Speed Flat Mount BLK

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> Source: [Smart supply deals](https://smartsupplydeals.com/products/shimano-ultegra-st-r8170f-di2-shift-brake-lever-br-r8170-hydraulic-disc-brake-caliper-right-rear-12-speed-flat-mount-blk)
> Updated: 2026-07-22