The OTR 430mm x 150mm U-Type Air Disc Brake Rotor ensures Expertise Built In™, having attached ABS rings made with non-corrosive metals and finished with an anti-corrosion coating. This heavy duty air disc brake rotor boasts high carbon alloy that provides durability and improved heat dissipation to eradicate brake fade and boost the life of your brake pads. FleetPride is your First Click in Heavy Duty®.