This SAE Recommended Practice provides uniform laboratory procedures for biaxial fatigue testing of wheels intended for normal highway use and temporary use on passenger car vehicles and light trucks. The appendices provide scaleable load files that are applicable to ballasted passenger cars and ballasted light trucks. A load file for unballasted passenger cars will be added to this document. Rationale Statement Revisions to this document include: re-wording of the scope to include ballasted light trucks; renumbering of Appendix A to follow SAE guidelines; increases in Appendix A@ Table 1 outboard load factors K(R@O) and K(L@O) (analytical review during writing of SAE Paper 2004-01-1578 identified the need to increase the scale factors); and addition of Appendix B: SAE Biaxial Load Sequence for Ballasted Light Trucks.