OVERLOADED TRUCK RIM HOW TO

Regardless of whether you are looking at a P-Metric, Euro-Metric, LT-Metric, Euro-Metric Commercial, T or ST tire the numbers in the size mean the same thing. If you see a size that starts with “ST,” that means “special trailer” and is only for use on a trailer. Other types of tires that fall into the Metric sizing type are Temporary Spares, they start with “T”. Light truck tires are designed to be used on vehicles capable of carrying heavy cargo and are usually only specified by a vehicle manufacturer on vehicles exceeding a certain load capacity. Euro-Metric Commercial, or C-Type is a designation standardized by the European Tyre and Rim Technical Organization for a light truck type tire. Notice that the C-type tires also have two load index numbers. Euro-Metric Commercial or C-Type tires will look very similar to a passenger Euro-Metric size except that there will be a “C” right after the rim size: 23/65R16C 121/119R. LT-Metric is a designation standardized by the Tire and Rim Association for a “light truck” type tire. Notice that there are two load index numbers and a Load Range, see the section on Load Index for more info. LT-Metric tires will have the letters “LT” before the size number sequence: LT245/75R17 119/116R Load Range E. Both size types are metric and so use the same structure as P-Metric and Euro-Metric but have some different characters in the size that differentiate them from their passenger car cousins. There are two common size types in this category, LT-Metric and Euro-Metric Commercial (aka C-type). If your vehicle is an SUV, Pickup truck or van, you might see a different type of size designation on your placard that is specific for heavy duty light trucks and vans, especially common on ¾ ton and larger pickup trucks and vans. Both P-Metric and Euro-Metric size tires are designed to primarily be used on passenger vehicles, which can include cars, minivans, SUVs, and other light duty pickup trucks. Euro-Metric is a designation standardized by the European Tyre and Rim Technical Organization for a “passenger car” tire type. For Euro-Metric there will be no preceding letter before the number sequence begins: 225/70R16 98H. P-metric is a designation standardized by the Tire and Rim Association for a “passenger car” tire type. For P-Metric tires, you’ll see the letter “P” before the number sequence begins: P225/70R16 97H.

Most passenger cars, SUVs and light pickups (1/2 ton and smaller) will come with tires that are either P-Metric or Euro-Metric. Not sure you need new tires? Our Tire Replacement Guidance article will help you determine whether it’s time to retire your tires. If you decide you want to substitute a new size or tire type, consult an authorized tire retailer who can expertly advise you, because many optional tire sizes may have different load capacities and could require wheels of a different rim width or diameter and different inflation pressure.

OVERLOADED TRUCK RIM HOW TO

If you’re unsure of how to read tire measurements from your tire walls, the information and graphics below will tell you how to read tire size, understand and interpret it.

You may have never paid attention to the string of numbers and letters on every tire, but it’s a gold mine of information. To ensure your current tire or a replacement tire you may be looking at matches your vehicle’s requirements, it will be good for you to understand how tire sizing works.

This information is usually inside your car’s doorjamb, in your owner’s manual. Once you have determined it’s time to buy tires, you’ll need to know what size tires are correct for your vehicle. Depending on what you drive, you may be interested in how to find the right tire for your…

Overloaded truck rim