Motorcycle tires are typically sized using a combination of numbers and letters. The first number indicates the tire’s width in millimeters, while the second number indicates the aspect ratio, or the height of the tire’s sidewall as a percentage of the width. The letter at the end of the size indicates the construction of the tire and the rim size it is designed to fit. For example, a tire size of 120/70-ZR17 would have a width of 120 millimeters, a sidewall height that is 70% of the width, and a rim size of 17 inches.
The tire size is an important factor in determining the performance and handling of a motorcycle. A tire with a wider width will provide a larger contact patch with the road, which can improve traction and handling. However, wider tires may also be more prone to rolling over or experiencing a blowout at high speeds. The aspect ratio, or sidewall height, of a tire can also affect its performance. A tire with a lower aspect ratio will have a shorter sidewall, which can improve cornering and handling, but may also make the bike less comfortable to ride.
In addition to the size, there are also different types of motorcycle tires available, each with their own characteristics and performance capabilities. For example, touring tires are designed for long distance riding and provide a smooth, stable ride. Sport tires, on the other hand, are designed for high-performance riding and offer improved grip and handling. It’s important to choose the right type of tire for your riding needs and style in order to get the most out of your motorcycle.