IF2-M15The Incurve IF Two Series retains the same features as the IF One Series however allowing the option for either 2 Piece of 3 Piece configuration, adding many more ways to customize your wheel setup. Using forgings made of 6061 T6 Aerospace Grade Aluminum then finished using industry leading powders, the build quality of these wheels set the benchmark for the aftermarket wheel game. Construction: 2 Piece or 3 Piece Flat Concave Profile Size: 18 to 22