The GRX BL-RX825 brake lever (for Di2) is a left brake only lever option that pairs perfectly with a right ST-RX825 dual control lever. It is designed for gravel and mixed-terrain riding. The ergonomic lever features raised hoods, ribbed surface texture, and an anti-slip coating on the brake lever for increased security and control. The hood body is optimized for seamless integration with flared handlebars~The RX825 brake lever is paired with a GRX BR-RX820 flat mount disc brake caliper that brings a new level of control to gravel cycling with enhanced modulation and a quicker initial braking point. And despite its compact construction, the system is quieter and easier to maintain.