2018 SUBARU WRX tire type

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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
&Electrical systemAlternatorSTI 12V-110A
Except STI 12V-130A
Spark plugsTYPE RA ILFR7H (NGK)
STI except TYPE RA SILFR6A (NGK)
Except STIILKAR8H6 (NGK)&TiresTire sizeSTI—245/40R18 97W 245/35R19 89W
Except STI 235/45R17 94W 245/40R18 97W—
Wheel size
1768J 1868 1/2J 1968 1/2J
Pressure Front
33 psi (230 kPa, 2.3 kgf/cm
2)
Rear
32 psi (220 kPa, 2.2 kgf/cm2)
Wheel nut tightening torque
89 lbf·ft (120 N·m, 12 kgf·m)*1
*1: This torque is equivalent to applying approximately 88 to 110 lbf (40 to 50 kgf) at the end of the wheel nut wrench. If you have tightened the wheel nuts
by yourself, have the tightening torque checked at the nearest automotive service facility as soon as possible. For the wheel nut tightening procedure,
refer to“
Changing a flat tire”F9-5.Specifications/Specifications
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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
Vehicle identification
1) Vehicle identification number (under the
floor carpet of the right-hand front seat)
2) Emission control label
3) Tire inflation pressure label
4) Certification label
5) Vehicle identification number plate
6) Model number label
7) Fuel label
8) Air conditioner label
9) Serial number plate (TYPE RA)
Specifications/Vehicle identification
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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
For U.S.A.The following information has been
compiled according to Code of
Federal Regulations“Title 49, Part
575”.
Tire information&Tire labelingMany markings (e.g. Tire size, Tire
Identification Number or TIN) are
placed on the sidewall of a tire by
tire manufacturers. These markings
can provide you with useful infor-
mation on the tire.!Tire sizeYour vehicle comes equipped with
P-Metric tire size. It is important to
understand the sizing system in
selecting the proper tire for your
vehicles. Here is a brief review of
the tire sizing system with a break-
down of its individual elements.
!P Metric
With the P-Metric system, Section
Width is measured in millimeters.
To convert millimeters into inches,
divide by 25.4. The Aspect Ratio
(Section Height divided by Section
Width) helps provide more dimen-
sional information about the tire
size.
Example:(1) P = Certain tire type used on
light duty vehicles such as passen-
ger cars
(2) Section Width in millimeters
(3) Aspect Ratio (= section height
7section width).
(4) R = Radial Construction
(5) Rim diameter in inches
!Load and Speed Rating De-
scriptions
The load and speed rating descrip-
tions will appear following the size
designation.
They provide two important facts
about the tire. First, the number
designation is its load index. Sec-
ond, the letter designation indicates
the tire’s speed rating.
Consumer information and Reporting safety defects/For U.S.A.
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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
Example:(6) Load Index: A numerical code
which specifies the maximum load
a tire can carry at the speed
indicated by its speed symbol, at
maximum inflation pressure.
For example,“90”means 1,323 lbs
(600 kg),“89”means 1,278 lbs (580
kg).
WARNING
Load indices apply only to the
tire, not to the vehicle. Putting
a load rated tire on any vehicle
does not mean the vehicle can
be loaded up to the tire’s rated
load.
(7) Speed Rating: An alphabetical
system describing a tire’s capability
to travel at established and prede-
termined speeds.
For example,“V”means 149 mph
(240 km/h)
WARNING
.
Speed ratings apply only to
the tire, not to the vehicle.
Putting a speed rated tire on
any vehicle does not mean
the vehicle can be operated
at the tire’s rated speed.
.
The speed rating is void if
the tires are worn out, da-
maged, repaired, retreaded,
or otherwise altered from
their original condition. If
tires are repaired, re-
treaded, or otherwise al-
tered, they may not be sui-
table for original equipment
tire designed loads and
speeds.
!Tire Identification Number (TIN)Tire Identification Number (TIN) is
marked on the intended outboard
sidewall. The TIN is composed of
four groups. Here is a brief review of
the TIN with a breakdown of its
individual elements.
(1) Manufacturer’s Identification
Mark
(2) Tire Size
(3) Tire Type Code
(4) Date of Manufacture
The first two figures identify the
week, starting with“01”to represent
the first full week of the calendar
year; the second two figures repre-
sent the year. For example, 0101
means the 1st week of 2001.!Other markingsThe following makings are also
placed on the sidewall.
!Maximum permissible infla-
tion pressure
The maximum cold inflation pres-
sure to which this tire may be
inflated. For example,“300 kPa
(44 PSI) MAX. PRESS”
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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
!Maximum load rating
The load rating at the maximum
permissible weight load for this tire.
For example,“MAX. LOAD 580 kg
(1279 LBS) @ 300 kPa (44 PSI)
MAX. PRESS.”
WARNING
Maximum load rating applies
only to the tire, not to the
vehicle. Putting a load rated
tire on any vehicle does not
mean the vehicle can be
loaded up to the tire’s rated
load.!Construction type
Applicable construction of this tire.
For example,“TUBELESS STEEL
BELTED RADIAL”
!Construction
The generic name of each cord
material used in the plies (both
sidewall and tread area) of this tire.
For example,“PLIES: TREAD 2STEEL + 2 POLYESTER SIDE-
WALL 2 POLYESTER”
!Uniform Tire Quality Grading
(UTQG)
For details, refer to“
Uniform tire
quality grading standards”F13-15.
&Recommended tire inflation
pressure!Recommended cold tire infla-
tion pressureFor recommended cold tire inflation
pressure for your vehicle’s tires,
refer to“
Tires”F12-8.
!Vehicle placard
The vehicle placard is affixed to the
driver’s side B-pillar.Example:The vehicle placard shows original
tire size, recommended cold tire
inflation pressure on each tire at
maximum loaded vehicle weight,
seating capacity and loading infor-
mation.!Adverse safety consequences
of under-inflationDriving at high speeds with exces-
sively low tire pressures can cause
the tires to flex severely and to
rapidly become hot. A sharp in-
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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
.
Passenger car tire
A tire intended for use on passen-
ger cars, multipurpose passenger
vehicles, and trucks, that have a
gross vehicle weight rating (GVWR)
of 10,000 lbs (4,535 kg) or less..
Ply
A layer of rubber-coated parallel
cords..
Ply separation
A parting of rubber compound
between adjacent plies..
Pneumatic tire
A mechanical device made of rub-
ber, 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..
Production options weight
The combined weight of those
installed regular production options
weighing over 5.1 lbs (2.3 kg) in
excess of those standard items
which they replace, not previously
considered in curb weight or acces-sory weight, including heavy duty
brakes, ride levelers, roof rack,
heavy duty battery, and special trim.
.
Radial ply tire
A pneumatic tire in which the ply
cords that extend to the beads are
laid at substantially 90 degrees to
the centerline of the tread..
Recommended inflation pres-
sure
The cold inflation pressure recom-
mended by a vehicle manufacturer..
Reinforced tire
A tire designed to operate at higher
loads and at higher inflation pres-
sures than the corresponding stan-
dard tire..
Rim
A metal support for a tire or a tire
and tube assembly upon which the
tire beads are seated..
Rim diameter
Nominal diameter of the bead seat..
Rim size designation
Rim diameter and width.
.
Rim type designation
The industry of manufacturer’s des-
ignation for a rim by style or code..
Rim width
Nominal distance between rim
flanges..
Section width
The linear distance between the
exteriors of the sidewalls of an
inflated tire, excluding elevations
due to labeling, decoration, or pro-
tective bands..
Sidewall
That portion of a tire between the
tread and bead..
Sidewall separation
The parting of the rubber compound
from the cord material in the side-
wall..
Test rim
The rim on which a tire is fitted for
testing, and it may be any rim listed
as appropriate for use with that tire..
Tread
That portion of a tire that comes into
contact with the road.
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北米Model "A1700BE-B" EDITED: 2017/ 10/ 11
Uniform tire quality grading
standardsThis information indicates the rela-
tive performance of passenger car
tires in the area of treadwear,
traction, and temperature resis-
tance. This is to aid the consumer
in making an informed choice in the
purchase of tires.
Quality grades can be found where
applicable on the tire sidewall be-
tween tread shoulder and maximum
section width. For example:Treadwear 200 Traction AA Tem-
perature AThe quality grades apply to new
pneumatic tires for use on passen-
ger cars. However, they do not
apply to deep tread, winter type
snow tires, space-saver or tempor-
ary use spare tires, tires with
nominal rim diameters of 12 inches
or less, or to some limited produc-
tion tires.
All passenger car tires must con-form to Federal Safety Require-
ments in addition to these grades.
&TreadwearThe treadwear grade is a compara-
tive rating based on the wear rate of
the tire when tested under con-
trolled conditions on a specified
government test course.
For example, a tire graded 150
would wear one and one-half (1-
1/2) times as well on the govern-
ment course as a tire graded 100.
The relative performance of tires
depends upon the actual conditions
of their use, however, and may
depart significantly from the norm
due to variations in driving habits,
service practices and differences in
road characteristics and climate.&Traction AA, A, B, CThe traction grades, from highest to
lowest, are AA, A, B and C. Those
grades represent the tire’s ability to
stop on wet pavement as measured
under controlled conditions on spe-cified government test surfaces of
asphalt and concrete. A tire marked
C may have poor traction perfor-
mance.
WARNING
The traction grade assigned to
this tire is based on straight-
ahead braking traction tests,
and does not include accelera-
tion, cornering, hydroplaning,
or peak traction characteris-
tics.&Temperature A, B, CThe temperature grades are A (the
highest), B, and C, representing the
tire’s resistance to the generation of
heat and its ability to dissipate heat
when tested under controlled con-
ditions on a specified indoor labora-
tory test wheel. Sustained high
temperature can cause the material
of the tire to degenerate and reduce
tire life, and excessive temperature
can lead to sudden tire failure. The
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