Shimano GRX ST-RX610 Shift/Brake Lever with BR-RX400 Hydraulic Disc Brake Caliper – 12-Speed – Black
The Shimano GRX ST-RX610 dual control lever provides light, responsive shifting with gravel-specific ergonomics for improved control on mixed terrain. Paired with the BR-RX400 flat mount hydraulic disc brake caliper, this system delivers strong braking performance, consistent modulation, and excellent heat dissipation for gravel and adventure riding.
This is a multi-variation listing. Please review carefully and make your selection from the dropdown menu before purchasing.
Available Options
Performance & Use
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GRX 12-speed shift/brake lever with gravel-tuned ergonomics
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Textured hood and anti-slip brake lever surface for better control
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Reach Adjust for customized lever position
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BR-RX400 2-piston hydraulic caliper with ICE Technologies for heat management
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J-Kit connection system for easier setup and service
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One Way Bleeding simplifies maintenance
Compatibility Notes
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Compatible with Shimano 12-speed GRX / Road systems
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Flat mount brake standard
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Uses Shimano Mineral Oil hydraulic fluid
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Rotor not included
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1x or 2x configuration depends on selection
Specifications (Shared Platform)
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Brand: Shimano
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Model: ST-RX610 + BR-RX400
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Drivetrain Speeds: 12-Speed
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Brake Type: Hydraulic Disc
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Caliper Mount: Flat Mount
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Brake Lever Actuation: Hydraulic
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Adjustable Reach: Yes
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Adjustable Contact Point: Yes
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Pad Compound: Resin
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Shifter/Derailleur Compatibility: Shimano
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Color: Black
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Rotor Included: No
(Hose length, lever position, and drivetrain configuration vary by selection)
Condition & Packaging
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Retail packaged
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Full manufacturer warranty
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Genuine Shimano product
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Authentic, direct from manufacturer
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Includes only what is shown in photos
Professional installation recommended for proper setup and warranty support.
