Abstract: A brake comprising a caliper assembly; brake linings associated with the caliper assembly; and one of an electromechanical actuator module or a hydraulic actuator module. The body of the caliper assembly has a mounting wherein the module(s) can be removably mounted to the caliper without requiring modification to the caliper assembly. The mounting enables the actuator modules to be quickly changed out with a new actuator in the case of repair or maintenance; as well as facilitates initial assembly and upgrades to the brake.