24-inch/26-inch adult mountain bike 21-speed/24-speed/27-speed city student variable speed children boys and girls zxc

high configuration-white【 no shock absorber]](高配-白色【无减震】) high configuration-red [no shock absorption]](高配-红色【无减震】) high configuration-black [no shock absorption]](高配-黑色【无减震】) high configuration-iron gray [no shock absorption]](高配-铁灰【无减震】) top-spec-black(顶配-黑色) top-white(顶配-白色) top-red(顶配-红色) top-green(顶配-绿色) top-spec-iron gray(顶配-铁灰)

24-inch-21 speed(24寸-21速) 26-inch-21 speeds(26寸-21速) 24-inch-24 speed(24寸-24速) 26-inch-24 speed(26寸-24速) 24-inch-27 speed(24寸-27速) 26-inch-27 speeds(26寸-27速)