al. material 18x 2.15; 17x2.15 Classic bikes, Vintage bikes, Street bikes Polishing or anodizing available ... , Black, Red, Blue, Gold, Orange Available sizes: 10", 12", 14", 15", 16", 17", 18", 19", 21" and 23" diameters; 1.20, 1 ... .40, 1.60, 1.85, 2.15, 2.50, 3.00, 3.50, 4.25, 5.00 ...