What Size Is A Number 14 Screw

Sometimes, you know immediately when it's time to get new tires. I could blow out while you lot're driving, or you lot might begin to feel an immense vibration every fourth dimension yous become backside the wheel. Other times, the wear and tear happens over a long period. Your once-new tires become threadbare, underinflated or cracked the more than you lot use them, and you begin to think it's fourth dimension to shop around for a new set. Understanding exactly which tire size to buy is a disquisitional first step in ensuring you stay safe on the route. Here's a quick guide to get you lot started in understanding tire sizes.

Locating Your Tire's Sidewall

Take a expect at the side of your tire. Do you lot see that code of numbers and messages? It's usually located below the the proper name of the tire manufacturer. Chances are, yous've looked at it quite oft but never knew what it meant. A car tire size chart can tell you like information, but before you lot go earthworks for your owner'due south transmission, start here first. That string of characters is actually full of data about your tire blazon, size, construction and more. Jot it down completely before moving forrad.

Knowing Your Tire Type

Does the lawmaking on your tire sidewall begin with "P?" Most do. This tells you that you have passenger-type tires that arrange to specific standards, known as P-Metrics, mandated across the Us. If your code begins with the letters "LT," that simply ways that those tires are made for lite truck use. Though some trucks are equipped with P-Metric tires, certain manufacturers equip their vehicles with LT tires instead. They'll operate the same way but may require more inflation under higher pressure than their P-Metric counterparts. If your code doesn't take a "P" at the beginning, information technology conforms to Euro metrics instead. While they may look and operate similarly, information technology's important to understand that P-Metric and E-Metric tires have different load limits. Yous'll need this information when you're looking for the platonic tire size for your vehicle. You tin can employ it to compare your tires on a tire cycle size nautical chart moving forward.

Determining Your Tire Width

To measure the width of your tires, simply expect at the number subsequently the beginning letter of your code. This is the measurement from one sidewall of your tire to the next. This is a three-digit number measured in millimeters. So, if yours says 215, that ways that the tire is 215 millimeters in width.

Finding the Aspect Ratio

The next dimension y'all'll demand is the aspect ratio. After your tire's width, you'll see a slash in the lawmaking. The side by side ii digits that follow describe this ratio. The aspect ratio is comprised of the height of your tire from its cantankerous-section measured confronting its width. So, if your sidewall code says 215/65, that ways the tiptop measures 65 percent of its width of 215 millimeters. An alternative is to search a tire summit nautical chart past size to find your measurement.

Understanding Tire Construction

Next, accept a look at the letter of the alphabet that follows the aspect ratio dimension. If yours says "R," that means you take radial tires. This just ways the layers in the tire are arranged radially across information technology. The most common culling is bias ply, which is a tire construction that's more common for older vehicles.

Calculating Tire Diameter

Finally, yous'll need to know the size of the wheel that your specific tires should fit. You can find this by measuring the tire's diameter. While you lot could look yours up on a tire diameter size chart, yous can besides find your answer by searching the tire sidewall. Post-obit the letter that indicates your tire construction, y'all'll detect the diameter listed in inches as the next two digits. For instance, your lawmaking might read 215/65 R12, meaning the diameter is 12 inches. With this information in hand, you tin can visit your local tire supply store armed with the noesis you demand to observe the exact tires that are designed to fit your vehicle, wait nifty and give y'all peace of listen on the road.