The mountain bike is one of the most used equipment’s in outdoor sports activities. The present work presents a distributed sensing system expressed by a WSN for cycling assessment to increase performance of athletes involved in this probes. The implemented system performs acquisition, processing and data communication based on ZigBee protocol that also provides the machine-to-machine communication and data storage in a cloud platform. The information stored on the cloud server can be accessed through a mobile application that analyses and correlates all metrics calculated using the training data obtained during training session. The system permits to record the athletes training data and to access it in order to improve their performances during the next competitions based on data analysis. The recorded data of the evolution of each athlete permits to perform appropriate comparisons between different training sessions and different athletes results.