As a driver in Louisville, KY, you know the importance of maintaining your vehicle for optimum performance and safety. One critical component is your tires - those four pieces of rubber are the only part of your car that touches the road. But have you ever looked closely at the string of numbers on your tire sidewall and wondered what they mean?
Tire Size
The first number in the tire size refers to the width of the tire in millimeters from sidewall to sidewall. Passenger car tire widths typically range from 125 to 305. Here in Jeffersontown, where many locals commute to Louisville for work, having the right size tires is essential for a smooth, comfortable ride.
Aspect Ratio
Following the tire width, you'll see a slash and then a two-digit number. This is the aspect ratio, which is the height of the sidewall expressed as a percentage of the width. A lower aspect ratio means a shorter sidewall, which provides sportier handling but a firmer ride. Higher aspect ratios offer a softer ride and better traction.
Construction
Next, you'll see a letter - either "R" for radial construction or "B" for belted bias construction. The vast majority of today's tires are radial. If you're unsure which type of tire is right for your driving needs in the La Grange KY area, consult with a tire professional.
Wheel Diameter
The wheel diameter is the size of the wheel from one end to the other, expressed in inches. This number needs to match the diameter of your vehicle's wheels. Drivers in the Middletown KY area can find a wide selection of wheel and tire sizes at local tire shops and dealerships.
Load Index and Speed Rating
The load index is a number that corresponds to the maximum weight a tire can support when properly inflated. The speed rating, meanwhile, is a letter that indicates the maximum speed the tire is engineered to handle. It's important to choose tires with a load index and speed rating that match or exceed your vehicle manufacturer's recommendations for safe operation on St. Matthews KY roads and beyond.
Choosing the right tires is vital for a safe, comfortable ride. If you need help decoding your tire sidewall numbers or selecting new tires, learn more about tire care at our service center. The experts at the Jeff Wyler Nissan of Louisville service center are here to help you make an informed decision and keep your tires in top shape for miles to come.