R1 Concepts KEDS10664 Eline Series Cross-Drilled Slotted Rotors And Ceramic Pads Kit - Rear Package Includes 2 Brake Rotors And 4 Ceramic Brake Pads Precision Drilled Holes For Maximum Heat Dissipation Countersunk To Reduce Heat Stress And Cracks Diamond Slotted To Increase Brake Pads Bite Diamond Slots Acts As A Rotor Wear Indicator