SHIMANO GRX ST-RX400 10-SPEED DUAL CONTROL RIGHT

The Shimano GRX ST-RX400 right shifter is engineered for gravel riders who demand reliable braking with sufficient power reserves.

Paired with hydraulic disc brakes, this dual-control lever delivers excellent deceleration performance, keeping you in control on steep, demanding, and unpredictable descents. Gravel-specific ergonomics and an anti-slip brake lever provide confident handling across loose terrain, while responsive shifting keeps pace with mixed conditions. Whether tackling gravel, road, or cyclocross routes, this is the control system built for when terrain gets technical.

Features 

• Gravel inspired lever and bracket ergonomics
• Anti-slip brake lever
• Greater mixed-terrain control
• Same light shifting operation as top tier systems

Specification

• Use: Gravel, Road, Cyclocross
• Group: GRX
• Model: ST-RX400
• Type: Dual-Control (STI)
• Handlebar mounting: right
• Gear rear: 10-speed
• Optical gear display: No
• Lever reach adjust: Yes, with tool
• Handlebar diameter: 23.8mm/24.2mm
• Cable connection: Straight
• Brake-type: Hydraulic Disc Brake
• Recommended brake hose: SM-BH90-JK-SSR, SM-BH90-J-SSR
• Recommended brake caliper: BR-RX400
• Recommended brake rotor: SM-RT70 / SM-RT64
  

Material

• Lever: Aluminium, painted

Colour

• Black

Weight

• Approx. 313g

Contents

• 1 Shimano GRX 2-speed STI Dual Control ST-RX400 left for Hydraulic Disc Brake
• 1 Gear wire (Optislick) 1800mm
• End caps

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

Weights are based off pre-production products at time of publication. Weights may vary in final production.