A simple way to balance complete wheels, is to put two foam coffee cups full of water in the freezer.
You need a smooth piece of shaft that extends out each side of the bearings (and clears the tire) by 75mm or so.
Set up two saw horses (the same height) end to end with the gap to take the wheel.
Now take/break the ice out of the foam cups and sit one on each horse.
Then sit each end of the shaft on the top of an ice block. After a few seconds it will sit there due to the ice melting and the water will have made you a friction free balancer.
Add stick on wheel weights as required till the wheel will "stay" in any position its left.
It is a VERY accurate static balance, as the wheel bearings do not need to even turn.