What do the letters mean on motorcycle tires?
This is identifying the manner in which the tire was constructed, radial, bias belted, or standard bias/cross ply. Obviously, “R” stands for radial and the “B” stands for bias-belted. If there is no letter between the aspect ratio and rim size that means the tire is just a standard bias ply tire/cross ply tire.
What does 74H mean on a motorcycle tire?
Going hand-in-hand with the alphanumeric way of measuring, the service description is a combination of a tire’s load index and speed rating. For example, a tire with the sizing MT90B16 74H has a load index of 74 and a speed rating of H (130 mph).
How wide is a 110 motorcycle tire?
Tire Width Cross Reference Table
| Permissible Rim Widths | Metric | Standard Inch |
|---|---|---|
| 2.15, 2.50 | 100 | 3.75 |
| 2.15, 2.50, 2.75 | 110 | 4.00 |
| 2.15, 2.50, 2.75 | 110 | 4.25 |
| 2.15, 2.50, 2.75 | 120 | 4.50 |
What does 130 mean on a motorcycle tire?
We’ll use the metric system in our example. The first number is the width of the tire in millimeters (130). The second number is the height of the tire, compared as a ratio to the width. In this case, the tire height is 90% of the width, or 117 millimeters high. The dash after the height designates a bias ply tire.
What tyre size is 90 100?
In the 90/100-10 tyre size, 90 stands for the Width (groove section) of the tyre in millimetres, while 100 denotes the Aspect Ratio. It is the ratio of the tyre’s groove/tread section width to its sidewall height. Lastly, the 10 signifies for the diameter of the wheel in inches, in which the tyre is to be fitted.
How do you read tire size?
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.