Shimano GRX ST-RX400 STI Lever Left

The Shimano GRX ST-RX400 left STI lever is designed for gravel bikes, providing precise front shifting and reliable hydraulic braking in rough terrain.

• Hydraulic Brake Lever
  • Delivers consistent braking performance with excellent modulation, even on steep or loose surfaces.
  • Ergonomic design for secure grip and control over rough terrain.
• 2×10-Speed Drivetrain
  • Designed for Shimano GRX 10-speed systems, offering smooth front derailleur shifts.
• Gravel-Specific Ergonomics
  • Slightly reshaped lever and textured hood improve grip and comfort for long rides.

Compatibility

• Pairs with Shimano GRX hydraulic disc calipers (e.g., BR-RX400).
• Designed for Shimano 2×10-speed GRX drivetrains.