Pirelli P7 225/45 R17 91W

The Pirelli P7 is a high-performance tire that offers excellent grip and handling. It is designed for use on sports cars and has a special tread pattern that helps to improve traction. The Pirelli P7 is a very popular choice for those who want a high-quality tire that can provide excellent performance. This tire is designed for use on high-performance vehicles. It provides excellent grip and handling in both dry and wet conditions.

What does 225/45R17 mean?


The tire width is 225mm.


The aspect ratio of the tire is 45. Aspect ratio is the relative height of tire sidewall. The number refers to the percentage of sidewall height in relation to tire width.


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.


Rim diameter for the tire.

225/45R17 91W tire size

The width of 225/45R17 91W tire is stated in millimeters and sidewall height in percentages. In this table you’ll find out the 225/45R17 91W tire size in inches as well as few additional metrics:

In inches In millimeters

Section Width

8.9″ 225mm

Sidewall height

4.0″ 101mm

Diameter / Height

25.0″ 634mm


78.5″ 1993mm

Rim Diameter



808 per mile 502 per kilometer

Rim Size for 225/45R17 91W Tires

Recommended rim sizes for 225/45R17 91W tire:

Diameter Width Range
17″ 7-8.5″

What does 91W mean?

The load index 91 means that the tire has been designed to support 1356 lbs or 615 kg.

The speed index W means that the tire has been designed to be used in speed up to 168 mph or 270 kph.

This size is usually used on passenger cars.


Pirelli is a tire brand that is known for its high performance tires. The Pirelli P7 is a tire that is designed for high performance cars. It is a tire that is made with a special compound that helps to improve grip and handling. The Pirelli P7 is a tire that is available in a variety of sizes to fit a variety of cars.

Tire Specification

Brand: Pirelli
Model: P7
Season: Summer
Size: 225/45 R17
Load Index: 91 — 615 kg | x4 - 2460 kg
Speed Index: W — 270 km\h
Car Type:Passenger
Road: City
XL / Extra Load: No
RunFlat technology: No
Commercial / Reinforced: No