The Washington State Department of Transportation estimates that studded tires cause up to $29 million in damage to state-owned roadways every year. And in the city of Spokane, where the quality of our roads tops the list of municipal voters’ concerns, you’d think that’d be the end of discussion: Ban the studs, save our roads. But not so fast. “Studs are substantially better on ice and wet ice. They definitely give you superior traction,” said Mel Fries, manager of Preedy’s Tire and Automotive just east of downtown Spokane.