Pirelli P Zero 255/40 R18 99Y XL

The Pirelli P Zero is a high performance tire that offers excellent grip and handling. It is designed for use on high performance cars and is ideal for use in dry and wet conditions. The Pirelli P Zero has a unique tread pattern that helps to provide excellent traction and grip. The tire also features a special compound that helps to improve handling and stability. The Pirelli P Zero is a high performance tire that is designed to be used in dry and wet conditions.

What does 255/40R18 mean?

255	The tire width is 255mm.
40	The aspect ratio of the tire is 40. Aspect ratio is the relative height of tire sidewall. The number refers to the percentage of sidewall height in relation to tire width.
R	The letter in the middle refers to tire construction. Practically all tires sold for cars are radials. Sometimes you also see tires with RF or ZR. RF indicates the tire is run flat, whereas ZR means the tire has speed rating higher than V. These tires are also radials, as the R indicates.
18	Rim diameter for the tire.

255/40R18 99Y tire size

The width of 255/40R18 99Y tire is stated in millimeters and sidewall height in percentages. In this table you’ll find out the 255/40R18 99Y tire size in inches as well as few additional metrics:

	In inches	In millimeters
Section Width	10.0″	255mm
Sidewall height	4.0″	102mm
Diameter / Height	26.0″	661mm
Circumference	81.8″	2077mm
Rim Diameter	18″
Revolutions	775 per mile	481 per kilometer

Rim Size for 255/40R18 99Y Tires

Recommended rim sizes for 255/40R18 99Y tire:

Diameter	Width Range
18″	8.5-10″

What does 99Y mean?

The load index 99 means that the tire has been designed to support 1709 lbs or 775 kg.

The speed index Y means that the tire has been designed to be used in speed up to 186 mph or 300 kph.

This size tire is usually used on performance vehicles.

AboutPirelli

Founded in 1872, Pirelli is one of the oldest tire manufacturers in the world. Headquartered in Italy, the company produces tires for a variety of vehicles, including passenger cars, motorcycles, and commercial vehicles. Pirelli’s flagship product is the P Zero, a high-performance tire that is used on some of the world’s fastest cars, including the Bugatti Chiron and the Ferrari LaFerrari.