(c) No tire on a vehicle moved on a highway shall have on its periphery any block, stud, flange, cleat, or spike, or any other protuberance of any material other than rubber which projects beyond the tread of the traction surface of the tire, except that:
- (1) It shall be permissible to use farm machinery with tires having protuberances which will not injure the highway;
- (2) it shall be permissible to use tire chains of reasonable proportions upon any vehicle when required for safety because of snow, ice, or other conditions tending to cause a vehicle to skid; and (3) it shall be permissible to use studded tires during the period from November 1 of each year until April 15 of the following year: Provided, That in the interest of highway maintenance, no vehicle moved on a highway, other than school buses, shall be equipped with studded tires which are operational with a recommended air pressure greater than 40 pounds per square inch.