New Lightweight Springs in 2015 Audi A6 Avant

摘要

THE GFRP SPRING, which Audi developed in collaboration with the Sogefi Group, even looks different than a steel spring. It is light green, the fiber strand is thicker than the wire of a steel spring and it has a slightly larger overall diameter with a lower number of coils. Most importantly, however, it is some 40 percent lighter. Whereas a steel spring for an upper mid-size model weighs nearly 2.7 kilograms (6.0 lb), a GFRP spring with the same properties weighs just approximately 1.6 kilograms (3.5 lb).