Steel rotors provide a durable lightweight option in applications where sustained temperatures remain in the low to moderate range, and high heat spikes are only observed on an intermittent basis. A special alloy and proprietary manufacturing processes give these rotors high resistance to thermal distortion with excellent friction and wear characteristics against the pads. These rotors are most often directly mounted to "fixed" mount hats or mounting plates, but they can also be used with special dynamic slotted mount hats or plates that require the use of a standard hole mount disc. Each rotor size is available in the standard solid plate style, or weight drilled for lighter duty applications.