This work describes a strategy used in a trip energy expenditure estimation activity by the Presebike system. Presebike is an application prototype for the management of a sharing assisted bicycle system, that was based on a mobile application platform, because this fact facilitates that the users can access the system from its smartphone, tablet or any personal device, reducing the need of any others additional device to pick up a bike. The Presebike system was designed to be able to access bicycles information on a cloud server to develop the following activities: requesting and selecting a system bicycle to get a ride, reserving it for a future use, and finally registering its returned back, once the desired ride was completed.In Presebike, when a user is requesting a bicycle, he will be asked to indicate which route is expected to be covered. The route can be specified making some clicks on a Google Map API screen, selecting the points of origin and the route destination. From these points the system will develop an estimation of the distance that the user will travel and what is the electric power consumption that the user will incur in this specific journey, in order to identify which bicycles have enough electric charge to be able to assist him in the pedaling tasks during the whole route.