Bicicleta de montanha, opções de freio a disco, 1/7/21 velocidades, rodas 18–26 pol, com cestinha e luz

12-inch steel rim front wheel assembly 16 thick bars, The rear wheel assembly of the 12 -inch ring 16 rough channels, 12-inch aluminum rim front wheel assembly 16 thick strips, 12-inch aluminum rim rear wheel assembly 16 thick strips, The 14 -inch steel ring front wheel assembly 20 rough channels, 14-inch steel rim rear wheel assembly 20 thick car rods, The 14 -inch aluminum ring front wheel assembly 20 rough channels, 14-inch aluminum rim rear wheel assembly 20 thick strips, 16 -inch steel ring front wheel assembly 20 rough channels, 16 -inch steel ring rear wheel assembly 20 rough channels, 16-inch aluminum rim front wheel assembly 20 thick strips, 16-inch aluminum rim rear wheel assembly 20 thick strips, 18-inch steel rim front wheel assembly 28 thick bars, 18 -inch steel ring rear wheel assembly 28 rough channels, 18 -inch aluminum ring front wheel assembly 28 rough channels, 18 -inch aluminum ring rear wheel assembly 28 rough channels, 20 -inch ring front wheel assembly 28 rough channels, 20 -inch ring rear wheel assembly 28 rough channels, 20 -inch aluminum ring front wheel assembly 28 rough channels, 20-inch aluminum rim rear wheel assembly 28 thick strips