At least here is how I do it for landing gear wheels in aircraft.
I use the following tools.
The F-18 Hornet I’m currently working on has some rather pronounced seam lines on the tires.
Using the UMP sanding stick I sand what I can while the wheel is on the spru. I sand just enough to remove the seam, but not so much to create a flat spot on the wheel.
The wheel is then cut from the spru.
By using the self-closing tweezers I have a good grip on the wheel to sanding the two attachment points. I then finish up any areas that need it with the Flex-I-File sanders.
The wheels then are put onto toothpicks using the craft glue in preparation for priming/painting.