Hello Together I do not want to trigger a fundamental discussion about sense or nonsense here and I always have my track set professionally, but I have come to a laser adjustment tool and do not understand how it works. In doing so, a laser is sent from one front wheel to the other and reflected back on a scale via a mirror parallel to the wheel. Thus, I can check how many angular seconds both wheels have to each other (Vo But how do you find out, and that’s where my understanding of how the relation to the vehicle is? So how do you make sure that the wheels are 90* to the vehicle when setting e.g. 0*?