The width of the cross section remains the same, but the height of the cross section decreases. Advantages: Increased grounding area.
Improve support.
When the tire diameter is constant, larger rims and brakes can be used.
Disadvantages: the comfort is reduced and the tires are not wear-resistant.
The height of the cross section remains the same, but the width of the cross section increases. Advantages: Increased grounding area.
Disadvantages: Increased rolling resistance, higher fuel consumption and heavier steering.
If it is too wide, it will also make the steering angle of the tire smaller.