15 inch 15x6" / 15x8" 100-P Classic Series Polished aluminum wheels rims licensed from American Racing 5x4.75" Chevy lug-pattern 0 offset 3.50" and 4.50" backspacing (set of four wheels) Rim Diameter: 15 inches Pitch Circle Diameter: 73 milimeter Center Bore 15x6" and 15x8"