The Shimano BR-RX400 Grx Brake Caliper is a high-performance component designed for gravel and adventure riding enthusiasts. Weighing just 143 grams, this brake caliper offers exceptional stopping power and control on various terrains. The BR-RX400 features a dual-piston design for improved modulation and responsiveness, ensuring precise braking in all conditions. Its flat mount compatibility makes it easy to install on modern frames, while the adjustable brake pad clearance allows for customization to suit your riding preferences. With a sleek and durable construction, the Shimano BR-RX400 Grx Brake Caliper is a reliable choice for riders seeking reliable and consistent braking performance on their gravel adventures.