Shimano GRX ST-RX400 mechanical shift hydraulic STI lever

Right Hand 10-Speed:

• Shimano GRX, with its gravel specific ergonomics, optimized gearing options, rugged reliability, and quiet and stable drivetrain, sets itself apart from the rest of the component world
• GRX hydraulic disc brake STI's give you control, modulation and power with minimal effort in all riding conditions
• Raised hood head prevents hand misalignment and slippage
• Anti-slip texture and brake lever coating gives higher braking efficiency and reduces fatigue on long rides
• Right hand 11-speed lever
• Weight: 307 g

Left Hand 2-Speed:

• Shimano GRX, with its gravel specific ergonomics, optimized gearing options, rugged reliability, and quiet and stable drivetrain, sets itself apart from the rest of the component world
• GRX hydraulic disc brake STI's give you control, modulation and power with minimal effort in all riding conditions
• Raised hood head prevents hand misalignment and slippage
• Anti-slip texture and brake lever coating gives higher braking efficiency and reduces fatigue on long rides
• Left hand 2-speed lever
• Weight: 306 g