06/20/2024
4 Tire Tread Parts
1. Tread blocks
What are tread blocks? These are the raised parts of the tire that make contact with the road. The block provides traction.
2. Tire ribs
Tire ribs are the raised section of the surface of the tire, a collection of tread blocks. What do tire ribs do? Well, think about the job of a tire: A vehicle tire must ...
grip whatever surface it's driving on
prevent a vehicle from sliding on water, ice, or snow
stop when the driver brakes
resist hydroplaning
improve fuel efficiency .. all while providing a smooth and quiet ride
This is the job of the tire tread, and the rib plays a significant role in vehicle stability.
3. Tire grooves
Tire grooves are the deep channels between the ribs and tread blocks. They have an important job, especially in rain, snow, ice, slush, and mud. The grooves are designed to push those elements away from the car so the tires grip the road better. So, the next time you're a pedestrian and you get splashed by a car? That's the grooves at work.
4. Tire sipes
Sipes are thin "cuts" that are molded into the blocks. Unlike grooves, which run the circumference of the tire, sipes are smaller and thinner grooves that provide more flexibility in tires. You want sipes in on- and off-road tires, loose dirt and gravel and, of course, ice and snow.