What is a tread rib?

A tread rib refers to a continuous strip of rubber that runs around the tire, specifically in the tread area. It serves as a fundamental component of tire design and is crucial for providing traction. The tread ribs are responsible for channeling water away from the tire’s contact surface in wet conditions, which enhances grip and reduces the risk of hydroplaning. They also support the overall structure of the tread pattern, contributing to stability and performance.

Understanding the function of tread ribs gives insight into how tires interact with the road. They work in conjunction with other elements of the tread design, like grooves and blocks, to provide a balance of traction, stability, and wear resistance. This is essential for safe driving as it impacts handling characteristics and braking efficiency.

In contrast, the other options represent different aspects of tire design and do not accurately describe the role or definition of a tread rib.