A method of controlling a assembly includes measuring a first amplitude of a selected harmonic order of the radial force variation of the assembly, and locating a first angular location of the selected order of the radial force variation of the assembly. A second angular location of a tire is located, which indicates a phase of the selected order of a radial force variation of the tire, having a second amplitude. A third angular location of a wheel is located, which indicates a phase of the selected order of a runout value of the wheel, and has a third amplitude. A remaining force metric may be calculated using the pairs of the first amplitude and the first angular location, the second amplitude and the second angular location, and the third amplitude and the third angular location.