What do the letters and numbers stand for on tires?

What do the letters and numbers stand for on tires?

Also known as the service description, the number indicates the maximum load the tire can support when inflated properly, and the letter represents the maximum speed capability of the tire. The letter T speed rating indicates maximum speed capability of 118 mph.

How do you read a tire marking code?

After the DOT insignia is your tire’s identification number (TIN). The first grouping of two to three letters or numbers represents the assigned identification mark for the manufacturer. The second group can be no more than two symbols and identifies the tire size.

What does 95S mean on a tire?

The letter indicated corresponds to a specific speed capability, in miles per hour, based on standardized laboratory testing. Using our two examples (P225/60R16 95S and LT235/75R15 96H), the speed rating ‘S’ signifies a maximum rating of 112 mph, while a speed rating of ‘H’ means a maximum rating of 130 mph.

How do you read a tire rating?

A tire’s speed rating indicates the optimal speed that the tire can safely maintain over time. In short, it’s the fastest speed a tire can handle before it no longer performs as designed. The higher the speed rating, the better control and handling you’ll have at higher speeds.

Should I get H or V rated tires?

To support running at higher speeds, V-rated tires will have a stiffer sidewall and slightly firmer ride than H-rated tires. For normal driving conditions the H-rated tire will provide a more comfortable ride and the V-rated should give slightly better handling.

What do the numbers and Letters on tires mean?

The number is the load rating , or the amount of weight that it can handle. The letter is the speed rating , or the maximum speed the tire is built for. As an example, a tire rated 90R could safely carry 1,323 pounds and travel at 106 mph. Consult a load and speed index to find out what your tire’s specific rating means.

What do these numbers on a tire mean?

P – the tire is for P-metric passenger vehicles (regular cars, SUVs, light duty pickups of ¼-½ ton load capacities). No letter – a metric-sized tire (in the US, mostly for SUVs and vans). LT – the tire is for light trucks (some SUVs, medium and heavy duty pickups of ¾-1 ton load capacities).

What does marking on a tire denote load index?

Other Tire Markings (82) Load Index A tire’s load index is a measurement of how much weight each tire is designed to support . The larger the number, the higher the load capacity. This is one of the most important numbers on your tire. To find out what “82” means, it must be looked up on a Load-Carrying Capacity Per Tire chart.

What do the numbers on a car tire stand for?

Two numbers that follow the forward slash represent the profile of the tire, or also known as the aspect ratio. This is a two digit number that is a measurement of the height of the cross-section of the tire to its width.