Which component is not part of the tire's cord body?

The correct answer highlights that breakers are not considered a part of the tire's cord body. The tire's cord body primarily consists of components that provide structural integrity and support for the tire. The inner liner, beads, and sidewall are essential parts that all contribute to the tire's overall function and durability.

The inner liner provides a barrier to maintain air pressure within the tire, the beads help secure the tire to the rim, and the sidewall supports the overall shape and structure of the tire, allowing it to bear weight and absorb impacts during operation.

Breakers, on the other hand, are usually situated above the tire's cord body and are designed to help protect the tire from punctures and improve its handling characteristics, but do not play a role in the core structure that composes the cord body. This distinction is critical for understanding the anatomy of a tire and its various functions.