What are “Cryodized” aluminum drive plates? The process of deep cryogenic tempering involves treating the plates at minus 300 degrees Fahrenheit to improve the properties. Deep Cryogenic Tempering creates a significant increase in abrasive wear resistance and durability. The end results are a longer life and less chance of breakage. The plates are then hard anodized for added durability. These plates will not contaminate the oil like typical plain aluminum plates. They are also about one-third the weight of steel drive plates resulting in less rotating mass in the clutch assembly and quicker throttle response. Recommended for racing applications only.