# Shimano 105 ST-R7170-RE Di2 Shift/Brake Lever BR-R7170 Hydraulic Disc Brake Caliper - Rear 12-Speed Flat Mount BLK

The Shimano 105 ST-R7170 Di2 Shift/Brake lever features Di2 electronic shifting for precise intuitive gear changes to even more riders. The 105 BR-R7170 caliper features the Shimano Flat Mount System and its low-profile design that is ideal for road bikes.-   Reach adjustment and customized button functions allow you to dial in your ideal ergonomics
-   Creates a clean cockpit with wireless connection and enhances the aesthetic of your bike while keeping shifting lightning fast
-   Easily change button function with the E-TUBE app
-   Includes 2 x CR1632 batteries
-   10% wider pad clearance decreases the chance of disc brake rotor rub
-   Maintenance-friendly one way bleeding process
-   Includes L03A Resin pads with finned alloy backplate
    
    Brake Lever Actuation
    
    Hydraulic
    
    Rotor Included
    
    No
    
    Brake Caliper Mount
    
    Flat Mount
    
    Brake Lever Use
    
    Right
    
    Rear Der/Shifter Compatibility
    
    Shimano Road Di2
    
    Brake Type
    
    Disc
    
    Front Der/Shifter Compatibility
    
    Shimano Road Di2
    
    Color
    
    Black
    
    Hydraulic Fluid Type
    
    Mineral Oil
    
    Pad Compound
    
    Resin
    
    Hydraulic Hose Length
    
    1700
    
    Includes Brake
    
    Disc
    
    Adjustable Reach
    
    Yes
    
    Defined Color
    
    Black
    
    keyword search
    
    105
    
    Position
    
    Rear
    
    Speed
    
    12-Speed

## Details

- **Price:** 465.0 USD
- **Vendor:** Gio's Outdoors
- **Type:** Brake/Shift Lever - Drop Bar
- **Tags:** Gio's Outdoors, Shopify Collective

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 465.00 USD | In stock |

## Images

- Shimano 105 ST-R7170-RE Di2 Shift/Brake Lever BR-R7170 Hydraulic Disc Brake Caliper - Rear 12-Speed Flat Mount BLK

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> Source: [Smart supply deals](https://smartsupplydeals.com/products/shimano-105-st-r7170-re-di2-shift-brake-lever-br-r7170-hydraulic-disc-brake-caliper-rear-12-speed-flat-mount-blk)
> Updated: 2026-07-22