Product Details: Update your semi with smooth front and rear brake performance, with the Webb 1.46" U-Type Disc Brake Rotor that ensures you're Ready for the Road Ahead™. Alongside the brake pads and caliper, this replacement rotor works to create a compression mechanism that slows a vehicle once the brake pedal is engaged. Crafted with precision standards to remove defects and provide long-term durability. FleetPride is your First Click in Heavy Duty®.