The dimensions are 180/55-17. That means it has a width of 180mm, a profile of 55, and can be fitted on a 17" diameter rim. The profile of the tires, which is the height of the tire's sidewall, is always referred to as a plain number without a unit of measurement because it is a percentage of the width. For example, a 180/55 tire has a width of 180mm and a profile of 55, which means it has a profile of 180 x 0.55 = 99mm.
The load index and speed index are two other important characteristics of tires. Specifically, the load index is the maximum load under which the tires are expected to operate correctly and is described by an integer, which corresponds to kilograms, while the speed index is the maximum speed under which the tires are expected to operate correctly and is described by a letter from the English alphabet, which corresponds to km/h. It should be noted that the maximum kilograms, to which the load index corresponds, are referred to per tire.
Rear motorcycle tyre Diablo Rosso II by Pirelli. It is suitable for on-road driving, meaning it can only be used on the road (asphalt surface).
Tyre dimensions and characteristics
The dimensions are 180/55-17. That means it has a width of 180mm, a profile of 55, and can be fitted on a 17" diameter rim. The profile of the tires, which is the height of the tire's sidewall, is always referred to as a plain number without a unit of measurement because it is a percentage of the width. For example, a 180/55 tire has a width of 180mm and a profile of 55, which means it has a profile of 180 x 0.55 = 99mm.
The load index and speed index are two other important characteristics of tires. Specifically, the load index is the maximum load under which the tires are expected to operate correctly and is described by an integer, which corresponds to kilograms, while the speed index is the maximum speed under which the tires are expected to operate correctly and is described by a letter from the English alphabet, which corresponds to km/h. It should be noted that the maximum kilograms, to which the load index corresponds, are referred to per tire.
Note:
The maximum weight increases proportionally with the load index number, meaning the higher the number, the greater the maximum operating weight of the tire. Similarly, the maximum speed increases as the speed index letter "increases," meaning the speed index "S" corresponds to a lower speed than that of the "V" index.
In this case, the tire is 73W, meaning the load index and speed index are 73 and W, respectively.
The marking TL comes from the initials of Tubeless Tyres. Tires with this marking do not require an inner tube.
- Placement
- Back
- Load Index
- 73
- Speed Rating
- W
- Wheel 17"
- 180/55-17
Important information
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.