P2DK-RP1 Kits contain either front or rear RP1 pads for track days and race use, along with a pair of 2-piece discs featuring our Thermic Black coating for corrosion protection on the non-swept area, available for either the front or rear kits. The RP1 compound provides progressive, predictable bite that gives drivers complete control during trail-braking, while Thermic Black coated discs prevent corrosion.