Back to all

By the Numbers: Tire Replacement at Tuffy Tire & Auto Service Batavia in Batavia

May 19, 2019

Ever notice that your tire is covered with writing? It's like some hieroglyphic art form. Of course, Batavia drivers know that it's not just graffiti, but to most of us, it might as well be. Would you like to know what all those codes on your tire mean? It won't lead you to buried treasure, but it could help you make a better tire purchase at your local Batavia tire store.

Prominently featured on your tire is a set of numbers and letters that looks something like this: 225 50 R 16 92 H. The first number is the width of the tire in millimeters, or the width between the sidewalls of the tire when it is fully inflated and not carrying a load. When Batavia drivers replace tires, they need to match this width number, or the tires won't fit properly in the wheel wells.

The 50 is the aspect ratio of the tire, which is measured by taking the height of the sidewalls and dividing it by the tread width. If you drive off-road around the Batavia area, it should have a high aspect ratio. For high performance on the road, you want a lower aspect ratio.

The R simply means this is a radial tire.

The 92 is the load rating index, or in other words, a rating of how much load a tire can safely carry. If you frequently haul heavy loads around Batavia, you will want a tire with a high load rating.

The last letter in our “code” sequence is the speed rating on the tire. Not all tires have this rating. In general, the closer the letter is to the end of the alphabet, the higher the speed rating. In other words, Z is the highest rating and A is the lowest. One exception: H comes between U and V. Why? Your guess is as good as mine.

If you'd just as soon ignore all of the markings on your tire, that's okay. When you need to replace your tires just ask your friendly and knowledgeable Tuffy Tire & Auto Service Batavia tire professional for his auto advice on the best tires for you and your vehicle. Replacing tires is a standard part of preventive maintenance for Batavia drivers vehicles. We all have to do it sooner or later. And the better we understand what we're buying, the better our vehicle will perform and the safer we will be on Illinois roads. Good vehicle care is informed vehicle care.

Tuffy Tire & Auto Service Batavia
301 S. Randall Rd
Batavia, Illinois 60510
630-879-9941

More articles from Tuffy Batavia

Free Money (Almost) (Fuel Saving Tips)

April 14, 2024

You spend a lot of money on a vehicle, probably the most money you'll spend on anything except a house. But the spending doesn't stop after you've bought it. It goes into things like insurance, repairs and fuel. One good piece of news is that you can cut down the amount you spend on fuel if yo... More

The Flat Fix that Fits (Tire Repairs)

April 7, 2024

Can you think of anyone who likes getting a flat tire? Of course not. But when one of your tires winds up with a flat or leak, whether it be from things like hitting a curb, running over a nail or picking up a sharp stone, it's time to have someone who knows what they're doing take care of it. ... More

Bad Vibes (Disc brake rotor problems)

March 31, 2024

If you were to name the most important safety feature on your vehicle right now, what would your answer be? A lot of driving experts would agree that its your brakes. Most newer vehicles use a well-engineered and efficient style of brakes called disc brakes. The name disc brakes comes from one ... More