You probably heard last month about all of the people riding across Iowa on two wheels during RAGBRAI. But there’s a growing number of folks in our state, and around the country, riding around on three wheels thanks to an Iowa-made product.

The three-wheeled Polaris Slingshot, built in Spirit Lake, is catching on around the country. The Slingshot is classified as a motorcycle, but it’s a far cry from the dirt bikes I grew up riding. There’s a steering...