How big is a 255 60R18 tire?
R18 tires have a diameter of 30 (763 mm), a tread width of 10 (255 mm), and a wheel diameter of 18 (457. The sidewall of the tire is 6 (153 mm), and the tire’s circumference is 94. This means a 255/60r18 tire will make make 673 revolutions per mile, or 417 revolutions per kilometer. When it comes to tire sizing, the initial number is the tire width in millimeters. Therefore, a 255 tire is 255 millimeters wide, and a 265 tire is 265 millimeters wide. That’s a 10mm difference in width.The 255/60R18 108H tire has the following features: the first three digits refer to the width of the tire in millimetres. The second two-digit number refers to the ratio between the height of the sidewall and the width of the tire. R stands for “Radial” and the last two figures 18 indicate the wheel diameter in inches.Finally, the last number in the tire size, 18, represents the diameter of the wheel rim in inches. Therefore, the tire size 225/60r18 can be expressed in inches as roughly 8.A tire number, such as 245/45R18, breaks down as follows: 245 (or 255): This number refers to the section width of the tire, measured in millimeters from sidewall to sidewall; thus, a 255 tire is 10mm wider than a 245 tire. This is the aspect ratio; the sidewall height of the tire as a percentage of its width.
What does 255 60 R18 mean on a tire?
The 255/60R18 108H tire has the following features: the first three digits refer to the width of the tire in millimetres. The second two-digit number refers to the ratio between the height of the sidewall and the width of the tire. R stands for “Radial” and the last two figures 18 indicate the wheel diameter in inches. R stands for “Radial” and the last two figures 18 indicate the wheel diameter in inches. The size ends with the load index 100, which is the maximum weight that each wheel can support, and the speed rating H, which is the maximum speed at which the tire is approved for use.