The FRP plastic springs have 4.3–5.5 times the strain energy storage per weight, compared to steel. This results in a lighter spring for a given application. The single FRP mono-leaf front spring used on the fourth-generation Corvette is 33 percent of the weight of an equivalent set of coil springs.
FRP plastic springs have greater strain energy storage per weight than steel, leading to lighter springs for a given application. The single FRP mono-leaf front spring used on the fourth-generation Corvette is 33% of the weight of an equivalent coil spring set.