The theme of Master project of Energetics engineering is actual because in nowadays it is important not only design and functionality of bicycle, but also safety and technological tests of bycicle frame, fork and other part corresponding to international standarts. In Master project was created system for dynamic changing force applying on dynamic pedal and wheel strenght tests. Results of practical pedal pushing research and computations of modelated pedaling system were similar. Analysis of pneumatic cylinder and proportional pressure regulator (using Centaurus Plus modeling program) showed that it is necessary to reduce cylinder working cell volume to enable system to repeat 3 Hz set signals. Using algorithms models was created program for data input, processing and visualizing of testing stand. This program was kindly evaluated by specialists of Technological Test center of Faculty of Technology.