Tyres are the unsung heroes of your vehicle, directly affecting safety, performance, and efficiency. This index page covers everything you need to know about tyres, including their types, sizes, load index, and speed ratings.
Types of Tyres
Different tyres are designed to suit specific vehicles, driving conditions, and purposes. Here are the most common types:
- All-Season Tyres
- Suitable for year-round use in moderate climates.
- Balanced performance for wet and dry conditions.
- Winter Tyres
- Designed for icy and snowy conditions.
- Enhanced grip and braking on slippery surfaces.
- Summer Tyres
- Optimized for warm weather and dry roads.
- Superior handling and cornering performance.
- Performance Tyres
- Engineered for high-speed stability and responsive handling.
- Commonly used on sports cars and performance vehicles.
- Off-Road Tyres
- Built for rugged terrain and off-road adventures.
- Larger tread blocks and reinforced sidewalls for durability.
- Run-Flat Tyres
- Allow limited driving even after a puncture.
- Convenient for emergencies.
Tyre Sizes
Tyre sizes are specified by a code on the sidewall, such as 205/55R16 91V. This code provides key details:
- 205: Tyre width in millimeters.
- 55: Aspect ratio (height as a percentage of width).
- R: Radial construction.
- 16: Wheel diameter in inches.
- 91: Load index.
- V: Speed rating.
Choosing the correct tyre size is crucial for safety and performance. Always refer to your vehicle’s manual or consult a professional when selecting tyres.
Tyre Load Index
The load index represents the maximum weight a tyre can support when fully inflated. Here is an example:
| Load Index | Maximum Load (kg) |
|---|---|
| 85 | 515 |
| 91 | 615 |
| 95 | 690 |
| 100 | 800 |
Using tyres with the correct load index ensures optimal performance and prevents excessive wear.
Tyre Speed Ratings
Speed ratings indicate the maximum speed a tyre can handle under optimal conditions. These ratings are denoted by a letter, such as “H” or “V.” Here is a summary:
| Rating | Maximum Speed (km/h) | Maximum Speed (mph) |
| S | 180 | 112 |
| H | 210 | 130 |
| V | 240 | 149 |
| W | 270 | 168 |
| Y | 300 | 186 |
Selecting tyres with the appropriate speed rating ensures stability and safety at different speeds.
Choosing the Right Tyres
To choose the right tyres for your vehicle:
- Identify Your Needs
- Consider your driving conditions, vehicle type, and performance requirements.
- Check Vehicle Specifications
- Refer to your owner’s manual for recommended tyre size, load index, and speed rating.
- Consult an Expert
- Seek advice from a tyre professional to ensure compatibility and performance.
- Regular Maintenance
- Monitor tyre pressure, tread depth, and wear for prolonged tyre life and safety.