See also:

Sidewall
The part of the tire between the tread and the bead. ...

Weight of optional extras
The combined weight of those optional extras that weigh more than the replaced standard part and more than 2.3 kilograms (5 lbs). These optional extras, such as highperformance brakes, level co ...

Overview of Tire Quality Grading Standards
The Uniform Tire Quality Grading is a U.S. Government requirement. Their purpose is to provide drivers with consistent and reliable information regarding tire performance. Tire manufacturers ...