[iconoclast]

OEM 21" tires and wheels fitted on 2018 X5M. I installed Dinan springs and H&R spacers a while back. At that time I had the vehicle aligned and routine service completed. Shortly after I went on a 1500 mile road trip and it handled without issue. I have not driven the car since but my wife has used it locally a few times but outside of that it has remained in the garage for several months. I came back from a 500 mile or so road trip this past week and I was fighting to keep it straight at highway speeds. 72-75mph a noticeable drift presented itself but 80mph+ was a chore to keep in line. Initially I thought it was the wind because of the weather or the crown in the road but it is present on all roads, in all conditions at any speed over 72mph. Any suggestions on what may be the issue or should I re-align now that the vehicle has settled or wait until winter tires are on and then do do tires, wheels and alignment all together?