AA357 aluminum alloy suspension and baseplate T6-tempered baseplate and hanger Kingpin made of SCM435 steel Axle pin made of SCM440 steel 92A steering rubbers Built-in hanger spacer Developed in Sweden Sizes: 145mm for 8.25″ – 8.5″ | 150mm for 8.5″ – 8.75″ | 160mm for 8.75″ – 9.0″