FLOW FORMED The Advanti Racing Spettro with the neat straight 9-even spokes is the new dynasty of the flow formed rims. The 18 inches Spettro achieve one of the lightest weight wheels produced in the ADVANTI DST collection. Utilising flow forming process, Advanti Racing Sprettro wheels are engineered to possess increased strength and improved shock resistance. With similar properties to those found in the forging process, Advanti DST wheels are lighter, stronger and boast more resilience, with stronger load capacity over regular cast wheels.