I can see these being a disaster in snow with the balancing of the tire. However I am hopeful for this technology to become mainstream
Agreed. Thing is, they already sell tires that pretty much never go flat (Cooper Discoverer S/T MAXX). You add enough plies and strength and as long as you maintain pressure, you're pretty much golden.
On a car where you want a light tire, it's pretty tough to solve.
For balancing, they could maybe have a reinforced bladder in the center (or maybe towards the sidewall?) that has a viscous fluid. Might counteract imbalance from snow, mud, dirt, etc.
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