... and DOT certificate Materail:aluminum(6061,6063,7116,7075) WM 1.40 Motorcycle alloy rims / racing motorcycle rim /alloy wheels MOTORCYCLE ALLOY RIM FOR ALL ... KINDS OF MOTORS ! ISO9001-2000Materail: aluminum(6061,6063,7116,7075 ... ", 14", 15", 16", 17", 18", 19", 21" diameters: 1.20, 1.40, 1.60, 1.85, 2.15, 2.50 ...