These service descriptions contain a two-digit number (load index) and a letter ( speed rating). The load index refers to the load-carrying capacity of a tire, or how   The load range/ply rating branded on a tire's sidewall identifies how much load the tire is designed to carry at its industry specified pressure. Locate the two or 3 digits at the end of your tire size — the fancy, technical name for the long string of letters and numbers encircling your tire — that precede the single letter. For example, if you see “88S” at the end of the tire size, the load index would be 88.

Most passenger car tire load indexes range from 75 to 100 but a few carry more. speed capability over 186 mph, tire manufacturers always use the letters ZR. Tires for light trucks, trailers, and large commercial vehicles indicate their load range on the sidewall using a letter from A to N in increasing order, each  Many tires come with a service description added onto the end of the tire's size. These service descriptions contain a two-digit number (load index) and a letter  13 Nov 2015 Immediately following the tire size is another number and a letter like 94S. This is the load index and speed rating of your tire. Let's decipher it.

Speed ratings on tires are expressed in letters and are generally listed along with the load index for a tire after the size, for instance 245/40R18 93H. 93 is a load index and the "H" is the speed rating.

Most passenger car tire load indexes range from 75 to 100 but a few carry more. speed capability over 186 mph, tire manufacturers always use the letters ZR. Tires for light trucks, trailers, and large commercial vehicles indicate their load range on the sidewall using a letter from A to N in increasing order, each  Many tires come with a service description added onto the end of the tire's size. These service descriptions contain a two-digit number (load index) and a letter  13 Nov 2015 Immediately following the tire size is another number and a letter like 94S. This is the load index and speed rating of your tire. Let's decipher it. These service descriptions contain a two-digit number (load index) and a letter ( speed rating). The load index refers to the load-carrying capacity of a tire, or how   The load range/ply rating branded on a tire's sidewall identifies how much load the tire is designed to carry at its industry specified pressure. Locate the two or 3 digits at the end of your tire size — the fancy, technical name for the long string of letters and numbers encircling your tire — that precede the single letter. For example, if you see “88S” at the end of the tire size, the load index would be 88.

Tire load index chart and understanding your tire's code. The service description is simply the speed rating and the load rating together. In our example, the service description is the last three characters: 225/45R17 94H 94 is the load rating and H is the speed rating.

Check the tire sidewall to find the letter that indicates the load range. Passenger tires are usually unmarked because they have a standard 4-ply rating. However, you may find passenger tires marked as Standard Load (SL) or Extra Load (XL or Reinforced). The load rating shows how much air pressure the tire can contain and the strength of the sidewall. Identification The load range is identified by a letter of the alphabet, usually from A to F, which represents the ply rating and load pressure.

Check the tire sidewall to find the letter that indicates the load range. Passenger tires are usually unmarked because they have a standard 4-ply rating. However,  

This is the height of the sidewall from the rim to the tread, expressed as a percentage of the tread width. For example, if the tire is 205 mm wide, and its aspect ratio is 50, then the sidewall is about 102.5 mm tall (50 percent of 205 mm). To roughly determine the load range capacity for each individual tire, take the vehicle’s gross weight and divide by four. If the vehicle gross weight is 4,500 pounds, each tire should be able to safely support at least 1,125 pounds. Tire load index or load rating is a numerical code on a tire sidewall which specify the maximum load the tire can carry at the speed indicated by the tire's speed rating under certain service conditions - specified by the manufacturer.

What do the numbers and letters on tires mean? Understanding tire service description, load rating, and speed rating. If you look at the sidewall of a tire, you' ll 

6 Mar 2019 In our example, the "93" stands for the maximum-load rating of 1433 pounds. The letter W denotes the maximum speed rating, which translates  The first letter on a tire indicates the tire's class. Z rated tires will also have a W or Y speed rating indication after the load index which denotes the actual mph  26 Jun 2019 A tire's 'Load Range' can be found on the tire's sidewall represented by a letter, usually after the tire size (35X12.50 R17/E for example). 94 - The load index tells you how much weight the tire can support when properly V - Speed ratings are represented by letters ranging from A to Z. Each letter  What Is a Tire Load Rating? All Tire Services  LOAD INDEX. 235/55R17 99H- The load index (99) is the tire size's assigned numerical value used to compare relative load carrying capabilities. The higher 

The light truck tires have two load index ratings because light truck tires are often used on vehicles with dual rear wheels. As an example, if the tire's dual load  Load index; see below. 1 OR 2 DIGIT/LETTER COMBO – P215/65R15 89H. speed rating; see below. 19 Dec 2019 Tire speed ratings come in the form of a letter that follows the load index value of the tire. The most common speed rating letters range from L to Y. 6 Mar 2019 In our example, the "93" stands for the maximum-load rating of 1433 pounds. The letter W denotes the maximum speed rating, which translates  The first letter on a tire indicates the tire's class. Z rated tires will also have a W or Y speed rating indication after the load index which denotes the actual mph