The Shimano GRX ST-RX810 and BR-RX810 Hydraulic Disc Brake Caliper set is engineered for riders who demand smooth shifting and confident braking on varied terrains. Designed for 11-speed systems, this combination delivers exceptional performance for gravel and adventure cycling. Responsive Shifting with Dual Control Lever: The ST-RX810 Dual Control Lever offers light and precise shifting, ensuring smooth transitions across gears. Its ergonomic design enhances comfort during long rides, while the textured, anti-slip brake lever provides superior control, even on rough or uneven surfaces. Powerful Hydraulic Disc Braking: The BR-RX810 hydraulic disc brake caliper features a low-profile Flat Mount design, offering consistent and reliable braking power. This setup ensures greater control and confidence when tackling steep descents or technical terrain. Built for Mixed-Terrain Riding: Specifically designed for gravel and adventure cyclists, this lever and caliper set combines shifting precision with robust braking power. Whether you're on loose gravel, packed dirt, or tarmac, the GRX set adapts to provide optimal performance. With the Shimano GRX ST-RX810 and BR-RX810 Hydraulic Disc Brake Caliper set, you’ll experience responsive shifting and unmatched braking performance.