Ride harshness is a somewhat common complaint on the Bolt forum, and some have gone with lighter weight wheels/tires to mitigate the issue.
I don't know how much impact rotational weight plays in efficiency, but at least on the Bolt it will recover the majority of that energy with regen. It may play some role in why Chevy decided to go with such heavy tires/wheels. Perhaps they simply wanted stronger wheels since you can't repair a tacoed rim with fix-a-flat.
Curious to hear feedback from your wife with regards to ride comfort.
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