What is the difference in tire specifications and sizes?

[McElias]

The differences in tire sizes are: 1. Distance variation: Larger tires cover more ground per revolution of the connected driveshaft, while smaller tires cover less distance per revolution. 2. Traction difference: Larger tires have greater contact area with the road surface, enhancing vehicle traction; smaller tires have reduced contact area, resulting in weaker grip. Automobile tires can be categorized by carcass structure into pneumatic tires and solid tires, with most modern vehicles using pneumatic tires. Based on internal air pressure, pneumatic tires are classified into high-pressure, low-pressure, and ultra-low-pressure types, with low-pressure tires being the most commonly used across vehicle categories.