Do you want to know what your tire's sidewall numbers mean? While they may seem random gibberish, each provides important information about the tire's size, capabilities, and original equipment specs. Drivers in Clarksville, IN, should familiarize themselves with these codes to ensure they always get the right tires for their vehicles.

Tire Width in Millimeters
The first number in the sequence indicates the width of the tire in millimeters from sidewall to sidewall. When properly mounted on the wheel, a tire with a designation starting with 225 is 225 millimeters wide. Wider tires generally provide more traction and stability, which is why performance vehicles often utilize them.
Aspect Ratio Percentage
Following the forward slash, you'll see a two-digit number that looks like a percentage. This is the aspect ratio, which compares the height of the sidewall to the width near Sellersburg. For example, if a tire has an aspect ratio of 55, the sidewall distance from wheel to tread is 55% of the tire's width.
A lower aspect ratio means a shorter sidewall, while a higher number indicates a taller sidewall. Tires with lower aspect ratios, often called "low profile" tires, are usually found on sports cars for enhanced cornering and crisper steering response.
Wheel Diameter in Inches
The last number in the main sequence is the diameter of the wheel in inches near New Albany, IN. So, a tire with a designation of 225/55R16 fits a 16-inch wheel. This number must match up with your vehicle's actual wheels, as even a one-inch difference can throw off speedometer accuracy and create clearance problems.
Load Index & Speed Rating
The final figures on the sidewall are the load index and speed rating. The load index is a numerical code specifying how much weight the tire can support when properly inflated near Jeffersonville, IN. Speed rating lettering indicates the tire's maximum speed capability.
Cracking the Tire Code near Louisville, KY
While all the letters and numbers on your sidewall may initially seem confusing, deciphering them is easier than it looks. Once you learn what each means, you'll be well-equipped to find the ideal tires for your driving needs and budget. If you're ever unsure, feel free to ask a tire professional for assistance. If it's been a while since your last tire checkup, schedule a service visit at Jeff Wyler Toyota of Clarksville's service center.