Michelin Latitude Sport 255/55 R18 109V

The Michelin Latitude Sport is a high-performance tire that provides excellent grip and handling in all weather conditions. It features a unique tread pattern that provides superior traction on wet or dry roads, and its special compound ensures a long-lasting tread life. The Latitude Sport is also designed to reduce road noise for a more comfortable ride. The Michelin Latitude Sport is designed for use in high performance vehicles on dry or wet roads.

What does 255/55R18 mean?


The tire width is 255mm.


The aspect ratio of the tire is 55. 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.

255/55R18 109V tire size

The width of 255/55R18 109V tire is stated in millimeters and sidewall height in percentages. In this table you’ll find out the 255/55R18 109V tire size in inches as well as few additional metrics:

In inches In millimeters

Section Width

10.0″ 255mm

Sidewall height

5.5″ 140mm

Diameter / Height

29.0″ 738mm


91.2″ 2318mm

Rim Diameter



694 per mile 431 per kilometer

Rim Size for 255/55R18 109V Tires

Recommended rim sizes for 255/55R18 109V tire:

Diameter Width Range
18″ 7-9″

What does 109V mean?

The load index 109 means that the tire has been designed to support 2271 lbs or 1030 kg.

The speed index V means that the tire has been designed to be used in speed up to 149 mph or 240 kph.

This size tire is usually used for SUVs.


Michelin is a French tire company that was founded in 1889. The company is known for producing high-quality tires that provide excellent performance and durability. The Michelin Latitude Sport is a tire that is designed for SUV and light truck applications. The tire features a tread pattern that is optimized for both on- and off-road use, and it is constructed from a durable rubber compound that is resistant to punctures and wear. The Michelin Latitude Sport is a reliable tire that can provide excellent traction and handling in both wet and dry conditions.

Tire Specification

Brand: Michelin
Model: Latitude Sport
Season: Summer
Size: 255/55 R18
Load Index: 109 — 1030 kg | x4 - 4120 kg
Speed Index: V — 240 km\h
Car Type:SUV
Road: On/Off road
XL / Extra Load: No
RunFlat technology: No
Commercial / Reinforced: No