You can find many useful information on the sidewall of your tire. At the end of the gradation, you can find a letter - in this case a V - which is the speed rating indication.
For example, a V speed rating means the tire can go up to a maximum speed of 168 miles per hour (240 kilometers per hour). =
The tire maximum speed can be determined by looking at the speed rating letter on the sidewall and see what speed it is associated with, Using the table below: