Uniform Tire Quality Grading Standards - SMART fortwo coupe Operator's Manual

Tires and wheels
Maximum tire inflation pressure
1
Maximum permissible tire inflation
pressure
i
For illustration purposes only. Actual data
on tires are specific to each vehicle and may
vary from data shown in above illustration.
This is the maximum permissible tire inflation
pressure for the tire.
202
>> Operation
Always follow the recommended tire inflation
pressure ( page 189) for proper tire infla
tion.
G
Warning!
Never exceed the max. tire inflation
pressure. Follow recommended tire
inflation pressures.
Do not underinflate tires. Underinflated
tires wear excessively and/or unevenly,
adversely affect handling and fuel econ
omy, and are more likely to fail from being
overheated.
Do not overinflate tires. Overinflated
tires can adversely affect handling and
ride comfort, wear unevenly, increase
stopping distance, and result in sudden
deflation (blowout) because they are
more likely to become punctured or
damaged by road debris, potholes etc.

Uniform Tire Quality Grading Standards

(U.S. vehicles)
Tire manufacturers are required to grade
tires based on three performance factors:
treadwear, traction and temperature resis
tance.
1 Treadwear
2
Traction
3
Temperature resistance
i
For illustration purposes only. Actual data
on tires are specific to each vehicle and may
vary from data shown in above illustration.