The beads work well with anything with a stiff suspension. Half ton trucks and up, motorcycles, atv, tractor trailer, jeeps. The problem is smaller passenger vehicle tires have ridges on the inside that do not allow the bead to roll freely, along with the soft suspension which gives internal balancing agents a false balance. another issue is that most passenger vehicle tire needs a dynamic balance which most balancing beads cant do. Although i do hear that Counteract balancing uses tempered glass beads to hold an electrostatic charge that holds the beads in place at lower speeds which which would provide a dynamic balance as well as static.
these are commonly used mud terrain applications as 1. the readjust with mud and ice in the wheel end assembly, and 2. some mud terrain tires are impossible to balance.
Pros:
readjust on the go to keep you balance
balances the complete wheel assembly
one time balance.
Cons
possible valve core leak
possible damage to the inner liner.
I suggest to look into different options as there are plenty out there, but personally, I use Counteract and have had no issues and I like how they remain in the balanced position at lower speeds.
Dyna beads and checkered flags are ceramic beads
equal flexx is a granular compound.