construction and design

designing and construction of an electric moped. i need help with all the calculation needed for this project like geometri (center of gravity, center of mass, gyroscopic effect, fork angle) suspension, stability, power needed, torque, battery capasity, [login to view URL] for the electric motor,forces,moments,deflection,torsion,fatigue control, lifespan for the material, wheels [login to view URL]