Downloadable mobile applications for connecting a smart phone to a power meter fitted to a bike to collect the user's cycling training data；Downloadable mobile applications for connecting a smart phone to indoor bicycle trainers to show, analyze and record the user's cycling information, power, and heart rate and to create an evaluation report or chart；Downloadable mobile applications for connecting a smart phone to a power meter fitted to a bike through wireless connection for firmware adjustment and update of the power meter；Downloadable mobile applications and computer software for tracking cycling training and performance, for collecting, storing and displaying of cycling performance data, and for creating customized cycling training programs；Downloadable mobile application software for data collection during cycling, namely, data collected from external sensors being torque sensors, speed sensors, motor rotating sensors and accelerometer sensors installed on a bicycle；Downloadable mobile applications for use by individuals participating in cycling training for detecting, storing and reporting daily human energy expenditure and physical activity level, for developing and monitoring personal activity and cycling plans, training goals and giving feedback on the achieved results；Downloadable mobile application for tracking workouts and cycling data