A tire changer with a controller includes a with a mount assembly adapted for contacting a wheel assembly to mount the wheel to a rotating spindle. The tire changer controller is configured to regulate the operation of a motor which is operatively connected to the rotating spindle to rotate the wheel assembly. A sensor coupled to the controller provides a data representative of the rotational position of the wheel assembly about a rotational axis. The controller is further configured to regulate the operation of a hydraulic actuating means for engaging a load roller with the wheel assembly to apply a radial force to a tire mounted on a rim of the wheel assembly during rotation of the wheel, and to regulate the operation of a tire handling means and mount assembly, enabling identification, marking, and adjustment of the tire angular mounting position relative to the wheel rim.