The paper deals with the use of bicycle messengers, called ook bike couriers, in the modern logistics chain. In an era where almost every actor - from policy makers to senior managers - are thinking about the environment and sustainability, new innovative concepts are overdeveloped worldwide. On the other hand, an abundance of solutions to Improve efficiency and overall sustainability of logistics and other related business activities are already available in the market. Reinventing the wheel all over again might not be be necessary. One of the methods to deliver parcels in a more sustainable way, is the transport of freight by bike. People on bike transport and deliver mail, parcels or freight with a low volume or weight. Bike couriers are proven to be fast and reliable within congested urban areas. These bikers Mainly advertised Their ability to go fast from one place to another in a city. Sustainability was a selling argument, but speed was more or Importance. Also, in Europe some bike commuter markets are reasonably well overdeveloped. Specific markets Seem to exist for freight transport or by bike. The research question of this paper Concerning bicycle messengers's thesis Whether companies can be an economic viable alternative for fossil fuel powered transportation, and if so, in what markets hypothesis opportunities can be found. The authors draw Conclusions about the business model and integrate is encountered weaknesses and opportunities. An operational cost calculation is included. A simulation of a round trip delivery scheme in an urban area firing place. A van as well as a bike courier solution was Compared. To draw some Conclusions about the economic feasibility of the round trip by bike courier, the cost per stop is Compared and will be be discussed. The paper ends with a conclusion on the observations made, and with a number of recommendations