This is the bead, a hoop-shaped tire component, two of which go in each tire. The bead is the rigid part of the tire that keep it held firmly to the wheel. The bead also gives the tire its round-shaped opening. The bead is made by encapsulating high-tensile steel wire in rubber and winding it around what's known as a mandrel into a hoop shape.
August 8, 2013 4:00 AM PDT
Photo by: Goodyear
| Caption by: Daniel Terdiman
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