In the degree of setting and tuning, free pulley body and the lamp plate only set of to choose the weight roller or the like. Significantly up the fastest which could not be achieved by the normal of the lamp plate. In addition, the ramp plate is moving angle of the inside of the weight roller attached, the position of the inclination to raise the maximum speed to the limit of the V-belt by its own design to each Private cars, also a sharp rise acceleration in the low speed range at the same time realized.
