Corvette Wheels (Set) - Cray Spider - Silver w/ Mirror Cut Face. A black widow may have eight legs, but Cray’s new Spider Corvette wheels have ten, eerily articulated from the deeply recessed hub to the very edge of the lip. Rather than hide the formidable Corvette brake rotor and caliber assembly, this open, “see through” design frames it. It is a design made possible by our highly advanced manufacturing technology known as rotary forging. Rotary forging is a process that significantly strengthens the aluminum alloy, permitting Spider’s graceful, arachnid spokes. Rotary forging also produces a markedly lighter wheel than conventional processes and weight is always the enemy of performance. Eighteen to 20-inch variations of Cray Spider Corvette rims ensure compatibility with C4, C5, C6 Grand Sport and Z06, and C7 Stingray and Z51 ‘Vettes. Argue with yourself over the matte black finish, silver with a mirror cut face or gloss black with a mirror cut face. * The Spider is manufactured using a highly advanced production technique called Rotary Forging. The rim of the wheels is forged at high pressure while the wheel is spun at high speed. This alters the molecular structure and enhances the strength of the alloy. The benefit is a much lighter weight than a regular cast wheel. Most importantly, the weight saving is in the outer rim of the wheel which dramatically reduces rotational mass and enhances vehicle performance.