Fixed calipers are a type of brake caliper used in vehicles, designed to hold the brake pads in a stationary position. Unlike floating calipers, which move to apply pressure, fixed calipers have pistons on both sides of the brake rotor. This design allows for more even pressure distribution, improving braking performance and reducing wear on the brake pads. These calipers are commonly found in high-performance vehicles and some heavy-duty applications due to their superior stopping power. They are often made from materials like aluminum or cast iron, which provide strength and durability. Fixed calipers are typically paired with disc brakes for optimal performance.