They are designed to reinforce body plies to hold the tread flat on the road.
Belts reduce squirm to improve tread wear and resist damage from impacts and penetration.
The main body of the tire consisting of wire beads and body plies, but not including the tread or sidewall rubber. A layer of specially compounded rubber forming the inside of a tubeless tire, designed to inhibit loss of air pressure. Plus Sizing is among the simplest ways for you to dramatically improve both the look and performance of your vehicle. The concept is to alter the wheel diameter and the tire aspect ratio. Plus Zero, Plus One and Plus Two.