from a friend...
Yeah it's definitely a thing. The Bolt came with brand new michelins and after 18k mi. they are looking a bit thin. She'll get new ones for the next school year. Some BOlt owners switch to Chevy Cruz 15" wheels and put more meat on the rims. You give up a little range.
I'll probably do that.
I think it's mostly the lower rolling resistance, not the battery weight. The bolt weighs 600 lb more than a civic.