Corvette Grand Sport Wheel in Chrome Fitment: 1988 C4 through 2013 C6 Corvette. Will NOT Fit C6 ZO6, Grand Sport or ZR1. Fitment provided for stock vehicles only.Wheel Size: 18x8.5Wheel Offset: 56Bolt Pattern: 5-120.65Hub Size: 70.3Backspacing: 6.95Center Caps: Center Cap IncludedFinish: Chrome Chrome Finish: Chrome is a brilliant and durable finish that, with a little care, can stand the test of time. A classic chrome finish is accomplished in a three step plating process. The first layer of plating is copper which adheres to the wheel and creates a smooth foundation. The second is nickel, providing hardness and durability. The final layer is chrome, which creates a bright cosmetic finish.