This Firestone 820-15 bias ply tire features a black sidewall, making it perfect for vintage Cadillac, Buick, Chrysler, Desoto, Lincoln and many more classic luxury sedans from the 1950’s. 820-15 tires are also great rear tires for a hot rod! This Firestone Bias Ply tire features an original Firestone Zig Zag Tread design and beautiful genuine whitewall construction. They’re made right here in the USA using original molds and modern materials and are fully backed by our life of the tread warranty.