What does P mean in tire size?

What does P mean in tire size?

If there is a "P" on the sidewall, it stands for "passenger car." This refers to the U.S. (P-metric) method of tire sizing. "LT" stands for Light Truck, "ST" is for Special Trailer and "T" stands for Temporary, which is primarily used for small spare tires.

What does the R mean in tire size?

The two-digit number after the slash mark in a tire size is the aspect ratio. For example, in a size P215/65 R15 tire, the 65 means that the height is equal to 65% of the tire's width. The bigger the aspect ratio, the bigger the tire's sidewall will be.

How many ply is a LT tire?

Passenger Tires feature specific categories, with most falling in the 'standard load' range. Light Truck Tires (LT) designate ranges in ascending alphabetical order, with load range 'B' representing a 4-ply rating at 35 PSI; C representing a 6-ply rating at 50 PSI, and so on.

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What does LS mean on a tire?

Eagle LS ("Luxury Sport") tires are Goodyear's Grand Touring All Season tires developed to deliver a smooth quiet ride and all-season traction, even in light snow.

What’s the difference between LT and ST tires?

LT tires that have softer sidewalls than ST tires can increase and exacerbate trailer sway. … Tim Fry, senior development engineer at Goodyear Tire & Rubber Company stated, “The major difference is reflected in the polyester cords used in ST tires. These cords are bigger than they would be for a comparable P or LT tire.

What is a light truck tire?

LT/Light Truck tires? Light truck tires are built for heavy vehicles and heavy loads. It all comes down to what the vehicle is designed to do. Passenger Tires are for vehicles that are designed for personal use – like hatchbacks, sedans, coupes, and crossovers.

What does 98h mean on a tire?

Example: P225/50/R17 98H. The load index and speed rating, or service description, are the numbers that follow the tire size. The load index tells you how much weight the tire can support when properly inflated.

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How wide is a 245 tire?

P-series tires are lighter, more fuel efficient and ride better. LT tires may ride somewhat harsher when the truck is empty or lightly loaded but are stronger and better suited to heavy loads and towing, for which you qualify on both counts. … The LT tire, on the other hand, can carry 2,470 pounds at 50 psi.

What is wheel offset?

The offset of a wheel is the distance from the hub mounting surface to the center line of the wheel. The wheel offset is measured in millimeters and results in a positive, negative, or zero offset. … Negative offset is when the hub mounting surface is toward the back or brake side of the wheels centerline.

What is a hard metric tire size?

If you see a “P” in front of the tire size displayed on a tire's sidewall it is a P-metric tire. If there's no P, it's a Metric tire (also called Euro-metric or Hard-Metric). In the past, P-metrics were the most common size designation found on domestic cars, minivans, and light-duty pickups and SUVs.

What does AT stand for on tires?

A/T – means All Terrain tire. The tire is designed to handle both off and on road driving. The tread design is more rugged compared to the H/T that is why it is favored by SUV owners who are going after the looks. M/T – means Mud Terrain. This is the ultimate “macho” tire as evident with its aggressive tread design.

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What is a tire bead made of?

The tire bead is the inner circle of the tire; the part of the tire that connects the tire to the rim, and holds the entire wheel together. This bead is a combination of a rubber band that is reinforced with a sturdy material such as steel cable.

What do the numbers on tires mean diagram?

The two-digit number that usually follows the tire's section width tells us the aspect ratio, or tire profile measurement. In this example, the 45 indicates that the sidewall distance, from the wheel rim to the outside of the tread, is 45% of the section width.

What is a ko2 tire?

Tires are designed specifically for different vehicles and wheel sizes. … All-Terrain T/A KO2 tires feature a racing derived cut-, chip- and tear-resistant tread compound that delivers longer life (up to 2 times the previous generation tire's treadwear on gravel roads).

What does LTX mean on tires?

The LTX of the LTX indicates that this all-season tire is designed for light trucks and SUVs. When purchasing tires, it's very important to know the exact dimensions necessary for your vehicle.