See also:

Making adjustments in 1 mph (Canada:

1 km/h) increments
Briefly press the cruise control lever to the pressure point, up 1 for a higher speed or down 2 for a lower speed. The last speed stored is increased or reduced. ...

Rim
This is the part of the wheel on which the tire is mounted. ...

Load index
In addition to the load bearing index, the load index may also be imprinted on the sidewall of the tire. This specifies the load bearing capacity more precisely. ...