Shimano GRX RX400 Hydraulic Disc Brake - 2020

With a low-profile Flat Mount design, the Shimano GRX BR-RX400 hydraulic disc brakes provide greater control for mixed terrain riding.

- 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