GRX BR-RX400 Flat-Mount Disc Brake Caliper, Resin Pads with Fins, adaptor sold seperately

GRX BR-RX400 Disc Brake Caliper

• Shimano's ICE technology provides excellent heat dissipation
• Caliper is designed to shed mud
• An easy hose joint system (J-kit) means convenient tool access
• Simple wheel replacement
• One Way Bleeding technology offers an easy and clean bleeding system