Recommended Tire Inflation Pressure; Sidewall - SMART fortwo coupe Operator's Manual

Tires and wheels
PSI (Pounds per square inch)
A standard unit of measure for air pressure
> bar, kilopascal (kPa).

Recommended tire inflation pressure

The recommended tire inflation pressure for
normal driving conditions is listed on the Tire
and Loading Information placard located on
driver's door B pillar and provides best
handling, tread life and riding comfort.
Rim
A metal support for a tire or a tire and tube
assembly upon which the tire beads are
seated.

Sidewall

The portion of a tire between the tread and
the bead.
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TIN (Tire Identification Number)
Unique identifier which facilitates efforts by
tire manufacturers to notify purchasers in
recall situations or other safety matters
concerning tires and gives purchasers the
means to easily identify such tires. The TIN is
comprised of "Manufacturer's identification
mark", "Tire size", "Tire type code" and "Date
of manufacture".
Tire load rating
Numerical code associated with the maximum
load a tire can support.
Tire ply composition and material used
This indicates the number of plies or the num
ber of layers of rubber coated fabric in the
tire tread and sidewall. Tire manufacturers
also must indicate the ply materials in the tire
and sidewall, which include steel, nylon, poly
ester, and others.
Tire speed rating
Part of tire designation; indicates the speed
range for which a tire is approved.
Total load limit
Rated cargo and luggage load plus
68 kilograms (150 lbs) times the vehicle's
designated seating capacity.
Traction
Force exerted by the vehicle on the road via
the tires. The amount of grip provided.
Tread
The portion of a tire that comes into contact
with the road.
Treadwear indicators
Narrow bands, sometimes called "wear bars"
that show across the tread of a tire when only
1
/ in (1.6 mm) of tread remains.
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