TAKASAGO EXCEL RIM Excel is the benchmark in off-road rim technology. Each Excel rim has been specially designed for use in extreme environments. Special 7050 aluminum alloy that surpasses the aircraft specifications of 7075. 3D rim design and CAE stress analysis to develop the best profile and the best aluminum alloy. Unique production process Part of Excel Rim's secret and strength is its exclusive expertise in extrusion design, complex multi-stage forming, advanced robotic welding, heat treatment and anodizing