What does 245 45R19 mean?
R19 tires have a diameter of 27. The sidewall of the tire is 4. This means a 245/45R19 tire will make make 728 revolutions per mile, or 453 revolutions per kilometer. In some cases, downgrading from 265 to 245 ” can lead to errors in the speedometer reading and small performance changes, especially during cornering. In the same context, 265-inch tires can also fit a vehicle with 245-inch OE tires without problems.The numbers 245 and 265 in tire sizes refer to the tire’s width in millimeters. A 245 tire is 245mm wide, while a 265 tire is 265mm wide, making it 20mm wider. The 245 size is often chosen for better fuel economy, smoother ride, and lower rolling resistance.The larger footprint of 245 tires contributes to better vehicle stability, especially at high speeds. This translates to a more planted feel on highways and improved cornering control on twisty mountain roads. The extra sidewall adds sturdiness, improving handling and reducing body lean for smoother driving.It’s 30mm wider, offering more contact patches and potentially improved handling. Remember, the first number indicates tire width in millimeters.
What is the meaning of 245 45r18?
In your case, P245/45ZR18: The first three numbers (245) is 245mm and is the width of the tire measured from sidewall to sidewall with the tire mounted on the recommended width rim. In other words, the height of the sidewall is 45% of the width, or in your case ~110mm. This refers to the internal construction of the tire. R stands for radial, the industry standard for most passenger vehicles today. D means diagonal construction, while B signifies belted bias construction. For Cincinnati drivers, radial tires provide the best blend of ride comfort, handling, and tread wear.Aspect Ratio): The tire’s sidewall is 45% of the tire’s width, which means the sidewall is about 114 millimeters or just over 4 inches. R (Construction Type): Radial tire, the most common type of tire produced today.Radial tires are the most common tires on the road in the United States today; thus “R” will usually be shown in the tire size designation. Radial construction means the tire’s internal ply cords are oriented in a radial direction, from one bead over to the other, essentially perpendicular to the direction of rotation.
What does the R stand for in 245 45R17?
And yep you worked it out correctly: a 245/45R17 fits on a 17 rim. You’ll usually find a letter ‘R’ between the ‘Profile’ and ‘Rim’ measurements. This ‘R’ points to the type of construction and stands for ‘radial’. Nearly all car tyres are a radial construction. R19 tires have a diameter of 27.