Have you ever noticed that the sidewall of your tyres are full of letters, numbers and codes?! This information is crucial to determining what standard and type of tyres you require. It can give you anything from date of production to load index. Some of it is intuitive, but a lot of it requires a guide to decode.
Legend 1. Manufacturer's Name or Brand 2. Model or Pattern Code 3. Tyre Size, Nominal Section width (mm), Height to width aspect ratio, Rim diameter code 4. Service description (Load Index + Speed Symbol) 5. ECE R30 Conformity Approval Number 6. EEC Noise Approval Number 7. USA Dept of Transport Manufacturer's code 8. Date of Manufacturer 9. USA UTQG Quality Grades ** 10. USA Maximum Tyre Loading ** 11. USA Maximum Tyre Inflation Pressure ** 12. Denotes Tubeless Construction 13. Safety Warning 14. Direction of Rotation [Directional Tyres Only] 15. Outer (Inner) sidewall [Asymmetric Tyres Only] 16. Extra Load: Denotes higher load capacity than standard tyre 17. TWI - Tread Wear Indicators ** These marking are required by North American legislation and have no significance in the UK and Europe