Update your semi with smooth front and rear brake performance, with the Bendix 1.5" ADB22X® U-Type Air Disc Brake Rotor that ensures you're Ready for the Road Ahead™. After the brake pedal is pressed, this replacement rotor works with the brake pads and caliper to create a compression mechanism that slows the vehicle. Built with precision standards to remove defects and provide long-term durability. FleetPride is your First Click in Heavy Duty®.