Kia niro eco electric 2020 Owner's Manual page 472

Maintenance
Tire speed ratings
The chart below lists many of the
different speed ratings currently
being used for passenger vehicle
tires. The speed rating is part of the
tire size designation on the sidewall
of the tire. This symbol corresponds
to that tire's designed maximum
safe operating speed.
Speed Rat -
Maximum Speed
ing Symbol
S 112 mph (180 km/h)
T 118 mph (190 km/h)
H 130 mph (210 km/h)
V 149 mph (240 km/h)
Z Above 149 mph (240 km/h)
3. Checking tire life (TIN: Tire Iden
tification Number)
Any tires that are over 6 years old,
based on the manufacturing date,
should be replaced by new ones. You
can find the manufacturing date on
the tire sidewall (possibly on the
inside of the wheel), displaying the
DOT Code. The DOT Code is a series
of numbers on a tire consisting of
numbers and English letters. The
manufacturing date is designated
by the last four digits (characters)
of the DOT code.
DOT: XXXX XXXX OOOO
The front part of the DOT means a
plant code number, tire size and
tread pattern and the last four
numbers indicate week and year
manufactured.
For example:
DOT XXXX XXXX 1620 represents
that the tire was produced in the
16th week of 2020.
WARNING
Tire age
Replace tires within the recom -
mended time frame. Failure to
replace tires as recommended can
result in sudden tire failure, which
-
could lead to a loss of control and an
accident.
4. Tire ply composition and mate
rial
The number of layers or plies of
rubber- coated fabric in the tire.
Tire manufacturers also must indi -
cate the materials in the tire, which
include steel, nylon, polyester, and
others. The letter "R" means radial
ply construction; the letter "D"
means diagonal or bias ply con -
struction; and the letter "B" means
belted-bias ply construction.
Tires and wheels
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