Why are tires of the same size different in width?

[StPeyton]

The reason why tires of the same model have different widths is that each manufacturer has its own design philosophy for tires. The functions of tires: Support the entire weight of the vehicle, bear the load of the car, and transmit forces and moments in other directions. Transmit traction and braking torque, ensure good adhesion between the wheels and the road surface to improve the car's power performance, braking performance, and passability; work together with the car suspension to mitigate the impact during driving and dampen the resulting vibrations. Performance guarantees of tires: Prevent severe vibrations and early damage to car components, adapt to the high-speed performance of the vehicle and reduce driving noise, ensure driving safety, handling stability, comfort, and energy efficiency.