Inch size is the most widely used measurement in ATV lawn tires, some older motorcycle tires and automotive tires. The example below is an ATV tires size 25x8-12 or 25x8.00-12. Also, if this size said 25x8R12 the “R” would indicate that the tire is of radial construction.
Snow tires tend to become much more expensive at sizes larger than 17 inches. In addition, the narrower the tire, the more effective it tends to be on snow and ice. So if you have 18- or 19-inch wheels and want an extra set of wheels for snow tires, it could be a good idea to go down to 17- or 16-inch wheels.