The Ultra Lightweight Quick Change Spool from Strange Oval is designed for high-performance racing applications, offering a significant reduction in weight and enhanced stiffness. Weighing just 5.15 lbs, it is 0.60 lbs lighter than typical aluminum spools, which improves speed and handling. It features heat-treated 4140 steel spline inserts and 416 stainless steel wear rings for durability, while its 7075-T6 aluminum spool halves provide increased rigidity and reduced deflection. The design also includes an O-ring seal for superior assembly and performance in oval track racing​.