Shimano GRX RX400 Right Hydraulic Disc Shift/Brake Lever 2x10-Speed

The Shimano GRX ST-RX400 right-hand shift and brake lever is designed for gravel and cyclocross bikes with a 10-speed drivetrain. It combines the rear derailleur shifter and hydraulic disc brake in a single lever.

• Shifting and braking with a single lever; right-hand control for the 10-speed rear derailleur
• Hydraulic disc braking for greater control, even on descents and gravel
• Lightweight, weighing 306 g for the single right-hand lever
• Fits handlebars with a diameter of 23.8 / 24.2 mm
• To complete the system, use the BR-RX400 caliper and SM-RT70 or SM-RT64 rotors

Technical specifications

• Model: ST-RX400 (right-hand lever)
• Speeds: 10 (rear derailleur)
• Brake type: hydraulic disc
• Weight: 306 g
• Handlebar diameter (clamp): 23.8 / 24.2 mm
• Recommended caliper: BR-RX400
• Recommended brake hose: SM-BH90-JK-SSR / SM-BH90-J-SSR
• Recommended rotor: SM-RT70 / SM-RT64