The Sport Rotor is a direct replacement 1pc rotor. This is designed to work with 71-87 C10's, with a 1.25" thick HD rotor. These stock size rotors feature Baer's signature slot, drill, zinc plated finish. They are also directionally vented, and work with the factory rotor bearings.
Better braking is acheived due to their drilled and slotted pattern. When paired with Sport Pads (not included, but optional), this further inmproves performance. The Sport Pads are a ceramic pad, that have low noise and low dust characteristics.