What does r12 mean on a tyre?
80 means aspect ratio, the height of tyre from tread to rim, expressed as \% of width (145). ‘R’ stands for Radial, the construction type. 12 means the diameter of of rim. As the rim diameter increases, you have to decrease the profile of the tyre. Riding comfort may vary if you use a very low profile tyre.
What does 165 mean on a tyre?
165. This number indicates that your tire has a width of 165 millimeters. 65. This number means that your tire has an aspect ratio of 65\%. In other words, your tire’s sidewall height (from the edge of the rim to the tire’s tread) is 65\% of the width.
What does the R stand for on tyre size?
The aspect ratio is given as a percentage. It is the ratio of the height of the sidewall to the tyre width. It is calculated by dividing the height of the tyre section by the width of the tyre section. The tyre designation R, which comes before the rim diameter marking, means that this tyre is a radial tyre.
What do different tyre sizes mean?
The two-digit number after the slash mark in a tire size is the aspect ratio. For example, in a size P215/65 R15 tire, the 65 means that the height is equal to 65\% of the tire’s width. The bigger the aspect ratio, the bigger the tire’s sidewall will be.
What is 75t tyre?
Radial construction.R stands for radial-ply construction. 387. 387 is the load index i.e. the maximum weight each tyre can carry at full speed. T is the speed rating i.e. the maximum speed for the tyre at full load.
What is 85s and 85t in tyres?
85. 85 is the load index i.e. the maximum weight each tyre can carry at full speed. T is the speed rating i.e. the maximum speed for the tyre at full load.
What does R mean in rims?
R stands for radial construction. B means belted bias and D stands for diagonal bias construction. 17 The last dimension listed in the size is the diameter of the wheel rim, which is most often measured in inches.
What does 120 116q mean on a tire?
Light Truck Tire Load Index For example, a light truck tire with a load index of 120/116 means a load capacity for a single tire of 3,086 pounds and a load capacity of 2,756 pounds for two tires.