By the Numbers: Tire Replacement at Top Tech Auto Repair Clawson in Clawson
September 1, 2019
Ever notice that your tire is covered with writing? It's like some hieroglyphic art form. Of course, Clawson 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 Clawson 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 Clawson 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 Clawson 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 Clawson, 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 Top Tech Auto Repair Clawson 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 Clawson 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 Michigan roads. Good vehicle care is informed vehicle care.
Top Tech Auto Repair Clawson
664 S Rochester Rd
Clawson, Michigan 48017
248-589-0980
http://www.toptechautorepairclawson.com
Need Service?
More articles from Top Tech Auto Repair Clawson

A Real "Pane" (Window Maintenance and Repair)
March 29, 2026
It's pretty frustrating when your driver's window won't work. You can't get your food at the drive-thru without opening the door, have a tough time using the ATM from your vehicle, can't have that fresh breeze blowing through your hair as you listen to your favorite road tunes. Plus, there's a s... More

Start Me Up (Ignition Systems)
March 22, 2026
When you start up your gasoline engine car, you may not know that it's using the same ignition principles as it has for decades. You have spark plugs that require enough power so a spark can jump across a gap at its tip. Years ago, a vehicle's 12-volt system had to produce 15,000-25,000 volts t... More

Steering You Right (Tie Rod End Replacement)
March 15, 2026
For drivers, S stands for safety. And there are three other words that start with S that are all equally important: starting, stopping and steering. For your vehicle to be at its safest, all three functions must be in top shape. Steering is one of those things we take for granted. After all, y... More
