See also:

Speedometer
The speedometer shows the vehicle speed. ...

Gross Axle Weight (GAW) and Gross Axle Weight Rating (GAWR)
Gross Axle Weight The total weight applied to each axle (GAW) must never exceed the Gross Axle Weight Rating (GAWR). The front and rear GAWs can be adjusted by relocating passengers and luggage ...

Uniform Tire Quality Grading (UTQG)
For details, refer to “Uniform tire quality grading standards”. ...