Where is tire construction information typically found?

Tire construction information is typically found on the sidewall of the tire. The sidewall contains important data, including the tire's specifications, such as size, load capacity, speed rating, and other relevant information like the type of construction (radial or bias-ply) and the DOT (Department of Transportation) identification number. This labeling is essential for both consumers and professionals as it provides necessary details for proper tire selection, maintenance, and compliance with safety regulations.

The other options do not provide access to this critical information. For instance, the tire rim mainly supports the tire and does not carry construction details. The tire warranty document, while important for understanding the terms of coverage, does not include construction specifications. Lastly, the underside of the tire is generally not visible or accessible for identifying such information. Thus, the sidewall is the designated location where detailed and relevant tire specifications can be readily found.