2009 Mazda RX-8 Owner's Manual - Page 391
2009 Mazda RX-8 Manual
Page 391 highlights
Customer Information and Reporting Safety Defects Tire Information (U.S.A.) Tire Labeling Federal law requires tire manufacturers to place standardized information on the sidewall of all tires. This information identifies and describes the fundamental characteristics of the tire and also provides a tire identification number for safety standard certification and in case of a recall. qInformation on Passenger Vehicle Tires Please refer to the diagram below. 1. TIN: U.S. DOT tire identification number 2. Passenger car tire 3. Nominal width of tire in millimeters 4. Ratio of height to width (aspect ratio) 5. Radial 6. Rim diameter code 7. Load index & speed symbol 8. Severe snow conditions 9. Tire ply composition and materials used 10. Max. load rating 9-21