Product Details: Get your semi Ready for the Road Ahead™ with smooth front and rear brake performance, with the ConMet 1.45" Flat Rotor Service Kit. Due to its partnership with the brake pads and caliper, this replacement rotor is able to create a compression mechanism that slows a vehicle once the brake pedal is pushed. Constructed with precision standards to remove defects and provide long-term reliability. FleetPride is your First Click in Heavy Duty®.