GRX ST-RX600 / BR-RX400 Brake & Shift Combo

GRX ST-RX600 11 speed shifters and flat mount BR-RX400 hydraulic calipers

Anti-slip brake lever increases control on bumpy terrain

Raised brake lever pivot point increases leverage from the hoods

Adjustable lever reach

Compatible with 11 speed mechanical GRX and road derailleurs

Forged aluminum BR-RX400 calipers

Pre-assembled with SM-BH90-JK-SSR high power hose

Includes L03A resin pads with improved wear resistance

Shimano