Tesla MODEL S Operating Manual page 205

Wheels and Tires
Overall width
Ply
Ply separation
Pneumatic tire
Radial ply tire
Reinforced tire
Section width
Sidewall
Sidewall separation
Snow tire
Test rim
Tread
Tread rib
Tread separation
Tread wear indicators (TWI)
Wheel-holding fixture
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The linear distance between the exteriors of the sidewalls of an
inflated tire, including elevations due to labeling, decorations,
or protective bands or ribs.
A layer of rubber-coated parallel cords.
A parting of rubber compound between adjacent plies.
A mechanical device made of rubber, chemicals, fabric and
steel or other materials, that, when mounted on an automotive
wheel, provides the traction and contains the gas or fluid that
sustains the load.
A pneumatic tire in which the ply cords that extend to the
beads are laid at substantially 90 degrees to the center line of
the tread.
A tire designed to operate at higher loads and at higher
inflation pressures than the corresponding standard tire.
The linear distance between the exteriors of the sidewalls of an
inflated tire, excluding elevations due to labeling, decoration, or
protective bands.
The portion of a tire between the tread and bead.
The parting of the rubber compound from the cord material in
the sidewall.
A tire that attains a traction index equal to or greater than 110,
compared to the ASTM E1136-93 (re-approved 2003,
incorporated by reference, see §571.5) Standard Reference Test
Tire when using the snow traction test as described in ASTM
F1805-00 (incorporated by reference, see §571.5), and that is
marked with an Alpine Symbol specified in S5.5(i) on at least
one sidewall.
The rim on which a tire is fitted for testing, and may be any rim
listed as appropriate for use with that tire.
The portion of a tire that comes into contact with the road.
A tread section running around the circumference of a tire.
The pulling away of the tread from the tire carcass.
The projections within the principal grooves designed to give a
visual indication of the degrees of wear of the tread.
The fixture used to hold the wheel and tire assembly securely
during testing.
Model S Owner's Manual