A new general-purpose computer program for optimum structural design synthesis is developed. Its principal components are, in general terms, optimizer and analyzer routines. The analyzer routine provides considerable flexibility and efficiency in the computational treatment of structural design problems. Special processor interfacing of the analyzer to the optimizer is composed in the system. By applying this programming system, an optimum design problem on the framed structure of the motor cycle to find the framed structure that will maximize the torsional rigidity subject to the constant volume, is studied.