The Shimano GRX Hydraulic Shifter/Disc Brake Caliper 12-speed (ST-RX820) is engineered for superior control and comfort in mixed-terrain riding and racing. Featuring Shimano’s Dual Control Lever technology, this shifter offers light, responsive mechanical 12-speed shifting, making it ideal for gravel and adventure cycling. The ergonomic design reduces palm pressure, while the textured, anti-slip brake lever ensures secure grip, even on rough and wet terrain. Optimized for use with flared handlebars, the GRX lever and brake system provide unmatched precision and comfort for long rides on challenging surfaces.

Features

• Superior Mixed-Terrain Control: Designed specifically for gravel and mixed-terrain, the GRX shifter delivers reliable 12-speed mechanical shifting and braking performance.
• Ergonomic Design for Comfort: The shifter’s ergonomic design reduces pressure on the palms, enhancing comfort during long rides.
• Textured Anti-Slip Brake Lever: The brake lever features a textured surface for a secure grip, ensuring consistent braking power even in wet or muddy conditions.
• Optimized for Flared Handlebars: The rounded hood shape is designed to distribute pressure evenly across the hand, providing comfort and control with flared handlebars.
• Advanced Shimano Technology: Includes features like SERVO WAVE action, reach adjust, free stroke adjust, and Shimano Mineral Oil for precise, reliable braking.

Specifications