We used the green power and WSN techniques to ad-dress issues related to cycling activities, including health records, trajectory monitoring, group positioning, and immediate safety issues. Each bicycle is equipped with a green power module, a unique WSN identification device and an optional biomedical monitoring device. GPS is not required. Bike paths are equipped with routers and gateways that serve as a bridge between the bicycle devices and the cloud server. The routers collect and transmit the cyclists' unique identification and biomedical data to the cloud server through the gateway. The cloud service platform provides users to monitor and calibrate the cyclists' trajectories, as well as their activity and health records. Furthermore, the cloud service platform includes a path establishment simulation system that enables a path manager to simulate paths before they are physically provided to determine the ideal establishment method for providing router and gateway.