beam 92 of the transducer 52 is precurved as best illustrated in fig3 thus the beam 92 is biased to bend in a predetermined direction for a given deflection of the equalizing beam 26 for example as additional load is applied to the vehicle the equalizing beam 26 undergoes increased bending the increased bending causes the mounts 80 82 to angle toward each other thereby decreasing the distance from one mount to the other because the bending beam 92 is precurved its radius of curvature decreases in response to the decrease in distance between the mounts 80 82 a non curved beam would also bend in response to load but it would not be possible to predict in which direction the beam would bend in such an instance although one strain gauge would undergo tension and the other strain gauge would undergo compression it would not be possible to predict which gauge would be tensioned and which would be compressed however in the case of the strain sensing transducer 52 the beam always bends such that the strain gauge 98 undergoes compression and the strain gauge 100 undergoes tension the result is a transducer with pre defined characteristics as indicated in fig1 a transducer 70.