Final answer:
Motorcycle tires must have at least 1.6 millimeters of tread to maintain grip and safety on dry and wet surfaces.
Step-by-step explanation:
In order to determine the minimum amount of tread required for motorcycle tires, it's important to understand the function of tire tread. Tread provides traction and grip for the motorcycle by displacing water and debris from the road surface. It helps maintain stability and control.
The specific minimum tread depth for motorcycle tires can vary by country and legal regulations. However, a commonly recommended minimum is 1.6 millimeters (mm). This ensures adequate grip and safety on dry and wet surfaces. It's important to regularly inspect tires for wear to maintain traction and safety.