The specific dimensions of the rubber that fits a vehicle from that model year is a crucial element for optimal performance and safety. This specification is typically expressed in a format that includes width, aspect ratio, and wheel diameter, such as 195/65R15. These numbers denote the tire’s width in millimeters, the sidewall height as a percentage of the width, and the diameter of the wheel in inches, respectively. This information ensures compatibility with the vehicle’s wheel wells and suspension system.
Correct specification adherence is vital for maintaining handling characteristics, braking efficiency, and fuel economy. Utilizing the originally specified dimension ensures that the vehicle’s speedometer and odometer function accurately, and also preserves the vehicle’s intended ride quality. Deviating from this dimension can negatively impact these factors and potentially compromise safety and performance.