Developed with and recommended to enhance performance of OEM pressure plates as well as Hinson clutch baskets, inner hubs and pressure plates Developed with and recommended to enhance performance of OEM pressure plates as well as Hinson clutch baskets, inner hubs and pressure plates Made out of high-temperature steel to outlast anything else on the market Made out of high-temperature steel to outlast anything else on the market Highly resistant to losing strength due to high heat from 4-strokes Highly resistant to losing strength due to high heat from 4-strokes The correct stiffness to handle high horsepower engines The correct stiffness to handle high-horsepower engines Provides optimum hook-up with minimum heat build-up Provides optimum hook-up with minimum heat buildup Made in the U.S.A. Made in the U.S.A.. SPRING KIT CLUTCH YZF450