Sidewall explained

As seen on the image , the sidewall of a tire includes numbers and letters, which perform the below tire information:

1. 225 tire width

2. 40 tire profile

3. R indicates that it is a “Radial” tire

4. 18 tire diameter

5. 94 tire load rating

6. Y tire speed rating

When choosing new tires, we recommend using the same size as your existing tires. Note down the information and start your search on using the three initial standard:

1. Width

2. Profile

3. Diameter

Then, you can select the speed rating and the load rating for your vehicle’s tires.