Quick short answer, it is on there solid as can be with no play or wiggle.
More in depth about my experience....
Once mounted correctly it is solid as can be. It comes with a 3 bolt pattern and 3 lugs to hold it in place. Here is a photo of the mounting bracket with the tire installed. It is similar to a trailer receiver and hitch system. Nearer to the tire (pointing upwards) is a set screw bolt that I tightened once I had adjusted the distance. Then you can see the second, I call it anchor bolt, that is facing the camera. The bolt they ship with the bumper is very short and was not long enough to thread into the receiver with my larger tires when I extended the mount. I ordered up a longer one through Fastenal for a matter of like $3. I ordered a 65mm metric bolt, I'll try to dig up my receipt to confirm if it is M12x1.25 or M12x1.5. Voila!
Also note, if you do go this route... The light they included for the rear license plate light has a white and black wire coming from it. Don't be fooled, the WHITE WIRE is in fact your grounding wire. I spent days nearly ripping out my hair trying to figure out why black to ground wasn't lighting up with a verified completed circuit. For the sake of testing I did black to positive and white to ground, booya we have light and no tickets lol
