Designed using state-of-the-art engineering workstations, and cast exclusively for Chassisworks by a foundry with decades of spindle-making experience, our new sculpted spindles are both strong and lightweight. Integral caliper-mounting brackets are included in the castings for the brakes required by today's high-horsepower street machines. Constructed of high strength ductile iron with a heat-treated, alloy-steel spindle shaft pressed and locked into place, they are unfinished bare-metal.