See also:

Tire ply composition and material used
Describes the number of plies or the number of layers of rubber-coated fabric in the tire tread and sidewall. These are made of steel, nylon, polyester and other materials. ...

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. ...

Tread
The part of the tire that comes into contact with the road. ...