Monoblock calipers are a type of brake caliper that is often used on racing cars and high-performance vehicles. They are made from a single piece of metal, which gives them greater strength and rigidity than other types of calipers. This makes them better able to withstand the high temperatures and forces that are generated during hard braking. Monoblock calipers also tend to be lighter in weight than other types of calipers, which can improve performance.