What is the term for the part of the tire that makes contact with the roadway?

The correct term for the part of the tire that makes contact with the roadway is the tread. The tread is specifically designed to provide traction, allowing the vehicle to grip the road surface while driving. It features various patterns and grooves that help channel water away from the tire, improving performance in wet conditions and reducing the risk of hydroplaning.

Other components of the tire, such as the sidewall, bead, and shoulder, serve different functions. The sidewall provides structural support and protection, while the bead secures the tire to the wheel rim. The shoulder, on the other hand, is the transition area between the tread and the sidewall. Understanding these distinctions is essential for recognizing how tires function and contribute to overall driving safety.