Class Flash ActionScript

class Bicycle
    {
        static public var wheels:Number = 2;
        private var _gears:Number;
        public function get gears():Number
        {
            return _gears;
        }
        public function Bicycle(numberOfGears:Number)
        {
            this._gears = numberOfGears;
            for (var i:int = 0; i < Bicycle.wheels; i++)
            {
                //Prepare a wheel.
            }
        }
    }