Portaciclo componibile basso

      *       *     *******   *****      *      *****   
     **      **     *        *     *    **     *     *  
    * *     * *     *              *   * *     *        
   *  *       *     ****         **      *     *        
  *******     *     *              *     *     *        
      *       *     *        *     *     *     *     *  
      *    *******  *         *****   *******   *****