Shift/Brake Set Shimano GRX ST-RX400/BR-RX400 Right, 10-speed

Shift/Brake Set Shimano GRX ST-RX400/BR-RX400 Right, 10-speed

The Shimano GRX ST-RX400 + BR-RX400 is a right-hand 10-speed Dual Control shift and hydraulic disc brake set designed for the demands of gravel riding. It delivers powerful and precisely modulated braking to maintain control on steep, technical or unexpected descents.

GRX-specific ergonomics ensure a secure grip on rough terrain, while tool-adjustable reach allows fine-tuning for different hand sizes. The Flat-Mount BR-RX400 caliper with one-way bleeding system makes maintenance simple and reliable.

• Mount: Right
• Rear speeds: 10-speed
• Reach adjustment: Yes, with tool
• Handlebar diameter: 23.8–24.2 mm
• Brake type: Hydraulic disc brake
• Brake caliper: BR-RX400-R
• Mount type: Flat-Mount
• Brake pads: L03A Resin with Fin
• Brake hose: SM-BH90-JK-SSR rear 1700 mm (cuttable)
• One-way bleeding: Yes
• Brake fluid: Shimano mineral oil
• Recommended rotor: SM-RT64, SM-RT70, SM-RT800
• Lever material: Painted aluminum
• Caliper material: Painted aluminum
• STI lever weight: approx. 313 g
• Caliper weight: approx. 143 g