Tire sizing, for example, a tire listed as 25×10-14: The first number, 25-Inches, implies the diameter of the tire, that is the distance from the top to the bottom. The second number, 10-Inches, implies how wide the tire is, basically how wide is the tire that contacts the road. The last number, 14-Inches, implies the diameter of the center of the tire, that is the space where the wheel/rim will fit. Golf cart tires will be divided into three groupings based on their tread classification. Street / Golf Course Tire provides the smoothest ride on pavement and is the most popular tire for turf usage. All Terrain Tire provides light off-road capabilities, like for use on gravel roads, but this tire is also good on pavement. The Off-Road Tire is popular for agricultural uses as it has an aggressive tread, this tire is designed for muddy or rocky terrain.