# Shimano GRX ST-RX400/BR-RX400 Hydraulic Disc Brake Brake/Shift Lever - Left 2x10-Speed Flat Mount Finned Resin Pads BLK

GRX ST-RX400 Brake/Shift Lever & Disc Brake-   Gravel inspired Dual Control shift/brake lever and bracket ergonomics
-   Anti-slip brake lever
-   Same light shifting operation as top tier systems
-   Tooled reach adjust allows for lever to be adjusted to fit multiple hand sizes and riding preferences
-   Compatible only with FD-4700 and FD-RX400 front derailleurs and RD-RX400 and RD-4700 rear derailleurs
    
    Rotor Included
    
    No
    
    Color
    
    Black
    
    Brake Caliper Mount
    
    Flat Mount
    
    Hydraulic Fluid Type
    
    Mineral Oil
    
    Brake Lever Use
    
    Left
    
    Pad Compound
    
    Resin
    
    Rear Der/Shifter Compatibility
    
    Shimano Road
    
    Hydraulic Hose Length
    
    1000
    
    Adjustable Reach
    
    Yes
    
    Adjustable Contact Point
    
    No
    
    Drivetrain Speeds
    
    10
    
    Defined Color
    
    Black
    
    Front Der/Shifter Compatibility
    
    Shimano Road
    
    Side
    
    Left
    
    Includes Disc Brake
    
    Yes

## Details

- **Price:** 300.0 USD
- **Vendor:** Gio's Outdoors
- **Type:** Brake/Shift Lever - Drop Bar
- **Tags:** Gio's Outdoors, Shopify Collective

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 300.00 USD | In stock |

## Images

- Shimano GRX ST-RX400/BR-RX400 Hydraulic Disc Brake Brake/Shift Lever - Left 2x10-Speed Flat Mount Finned Resin Pads BLK

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> Source: [Smart supply deals](https://smartsupplydeals.com/products/shimano-grx-st-rx400-br-rx400-hydraulic-disc-brake-brake-shift-lever-left-2x10-speed-flat-mount-finned-resin-pads-blk)
> Updated: 2026-07-23