The GRX BL-RX825 brake lever for Di2 is a left brake-only lever option that pairs with a right ST-RX825 dual control lever. Designed for gravel and mixed-terrain riding, it features an ergonomic lever with raised hoods, a 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 enhanced modulation and a quicker initial braking point to gravel cycling. Despite its compact construction, the system is quieter and easier to maintain.