EBCs number 1 selling product for motocross sport use, the DRC full kit includes heavy-duty aluminum impregnated cork based plates, 10% upgrade clutch springs and steel intermediate driven plates. The steel intermediate plates outlast stock alloy units and prevent muddying of the oil, maintaining stack height longer and with slightly heavier weight give an improved fly wheel effect on smaller engines.The CK series plates within the DRC set include the new wide ear construction lined plates which prevent dogging of the clutch basket.