I do a quick gravity balance on all of my bikes. Without a balancing stand, just remove the outer spacers to reduce friction.
I got tired of buying the stick on weights, and I'm a big believer in recycling, so I make my own.
Just make a rectangular form from heavy duty foil, melt some lead in an old tin can with a propane torch, and pour into the mold to about 1/4" thick. Score every 1/2" with a chisel. Break off the amounts you need & stick in place with RTV.
We don't stop riding because we get old, we get old because we stop riding.
"Wisdom is knowing what to do next, Skill is knowing how to do it, and Virtue is doing it"