Shimano GRX ST-RX400/BR-RX400 Disc Brake and Dual Control Lever

The Shimano GRX Dual Control Lever delivers light and responsive shifting for mixed-terrain riding. The ergonomic shifter design improves comfort, and the textured, anti-slip brake lever increases control on bumpy terrain.

– Excellent heat dissipation
– Flat mount
– Convenient tool access
– Simple wheel replacement
– Easy and clean bleeding system
– Never hesitate to tackle rough surfaces
– Simple set up and maintenance
– Gravel inspired lever and bracket ergonomics
– Anti-slip brake lever
– Greater mixed-terrain control
– Same light shifting operation as top tier road systems