tire size MAZDA MODEL CX-30 2021 Owner's Manual

T115/70D16 90M is an example of a
tire size and load index rating. Here is
an explanation of the various
components of that tire size and load
index rating. Note that the tire size and
load index rating may be different from
the example.
T
Indicates a tire that may be installed on
cars, SUVs, minivans and light trucks as
designated by the Tire and Rim
Association (T&RA).
115
“115” is the nominal width of the tire
in millimeters. This three-digit number
gives the width in millimeters of the
tire from sidewall edge to sidewall
edge. In general, the larger the
number, the wider the tire.
70
“70” is the aspect ratio. This two-digit
number indicates the tire's ratio of
height to width.
D
“D” is the tire construction symbol. D
indicates “diagonal ply construction”.
16
“16” is the wheel rim diameter in
inches.
90
“90” is the Load Index. This two-or
three-digit number indicates how
much weight each tire can support.
M
“M” is the speed rating. The speed
rating denotes the maximum speed for
which the use of the tire is rated.
Letter Rating Speed Rating
M 81 mph
Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)
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Location of the Tire Label(Placard)
▼Location of the Tire Label (Placard)
You will find the tire label containing
tire
inflation pressure by tire size and
other important information on the
driver's side B-pillar or on the edge of
the driver's door frame.

SAMPLE
▼ Recommended Tire Inflation
Pressure
On the tire label you will find the
recommended tire
inflation pressure in
both kPa and psi for the tires installed
as original equipment on the vehicle. It
is very important that the inflation
pressure of the tires on your vehicle is
maintained at the recommended
pressure. You should check the tire
pressure regularly to insure that the
proper inflation pressure is maintained.
Refer to Tires on page 9-8.
NOTE
Tire pressures listed on the vehicle
placard or tire information label
indicate the recommended cold tire
inflation pressure, measured when the
tires are cold, after the vehicle has
been parked for at least 3 hours. As
you drive, the temperature in the tire
warms up, increasing the tire pressure.
WARNING
Always check the tire inflation
pressures on a regular basis according
to the recommended tire inflation
pressure on the tire label and in
conjunction with the information in
this owner's manual:
Driving your vehicle with
under-inflated tires is dangerous.
Under-inflation is the most common
cause of failures in any kind of tire and
may result in severe cracking , tread
separation or “blowout”, with
unexpected loss of vehicle control and
increased risk of injury. Under-inflation
increases sidewall flexing and rolling
resistance, resulting in heat buildup
and internal damage to the tire. It
results in unnecessary tire stress,
irregular wear, loss of control and
accidents. A tire can lose up to half of
its air pressure and not appear to be
flat!
It is impossible to determine whether
or not tires are properly inflated just by
looking at them.
▼ Checking Tire Pressure
1. When you check the air pressure,
make sure the tires are cold
―meaning they are not hot from
driving even a mile.
2. Remove the cap from the valve on
one tire.
3. Firmly press a tire gauge onto the valve.
4. Add air to achieve recommended air pressure.
5. If you overfill the tire, release air by pushing on the metal stem in the
center of the valve. Then recheck
the pressure with your tire gauge.
6. Replace the valve cap.
7. Repeat with each tire, including the spare.
Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)
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NOTE
Some spare tires require higher
inflation pressure.
8. Visually inspect the tires to make sure there are no nails or other
objects embedded that could poke
a hole in the tire and cause an air
leak.
9. Check the sidewalls to make sure there are no gouges, cuts, bulges,
cracks or other irregularities.
▼Glossary of Terms
Tire Placard:
A label indicating the OE
tire sizes, recommended inflation
pressure, and the maximum weight the
vehicle can carry.
Tire Identification Number (TIN): A
number on the sidewall of each tire
providing information about the tire
brand and manufacturing plant, tire
size, and date of manufacture.
Inflation Pressure: A measure of the
amount of air in a tire.
kPa: Kilopascal, the metric unit for air
pressure.
psi: Pounds per square inch, the
English unit for air pressure.
B-pillar: The structural member at the
side of the vehicle behind the front
door.
Original Equipment (OE): Describes
components originally equipped on
the vehicle.
Vehicle Load Limit: The maximum
value of the combination weight of
occupants and cargo.
Bead Area of the Tire: Area of the tire
next to the rim.
Sidewall Area of the Tire: Area
between the bead area and the tread.
Tread Area of the Tire: Area on the
perimeter of the tire that contacts the
road when it's mounted on the
vehicle.

Seating capacity means the total
allowable number of vehicle
occupants. Seating capacity is
described on the tire label.

Production options weight is the
combination weight of installed regular
production options weighing over 2.3
kilograms in excess of the standard
items which they replace, and not
previously considered in the curb
weight or accessory weight, including
heavy duty brakes, ride levelers, roof
rack, heavy duty battery, and special
trim.

Rim is the metal support (wheel) for a
tire or a tire and tube assembly upon
which the tire beads are seated.
Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)
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Overloading makes a vehicle harder to
drive and control. It also increases the
distance required for stopping. In cases
of serious overloading, brakes can fail
completely, particularly on steep
grades. The load a tire will carry safely
is a combination of the size of the tire,
its load range, and corresponding
inflation pressure.
Never overload the vehicle and always
observe the vehicle's weight ratings
from the vehicle's Safety Certification
and Tire and Load Information labels.Base Curb Weight is the weight of the
vehicle including a full tank of fuel
and all standard equipment. It does
not include passengers, cargo, or
optional equipment.

Vehicle Curb Weight is the weight of
your new vehicle when you picked it
up from your dealer plus any
aftermarket equipment.

PAY LOA D
Pay l o a d is the combination weight of
cargo and passengers that the vehicle
is designed to carry. The maximum
payload for your vehicle can be found
on the Tire and Load Information label
on the driver's door frame or door
pillar. Look for “THE COMBINATION
WEIGHT OF OCCUPANTS AND
CARGO SHOULD NEVER EXCEED XXX
kg or XXX lbs” for your maximum
payload. The payload listed on the tire
label is the maximum payload for the
vehicle as built by the assembly plant.
If any aftermarket or dealer installed
equipment has been installed on the
vehicle, the weight of the equipment
must be subtracted from the payload
listed on the tire label in order to be
accurate.

Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)
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▼Tires
NOTE
The tires have been optimally matched with the chassis of your vehicle.
When replacing tires, Mazda recommends that you replace tires of the same type
originally fitted to your vehicle. For details, contact an Authorized Mazda Dealer.
Check the tire pressure label for tire size and inflation pressure.
Refer to Tire Pressure Label on page 9-2.Refer to Tire Inflation Pressure on page 6-31.
Standard tire
(U.S.A. and Canada)
Tire size Inflation pressure
Front Rear
215/65R16 98H 250 kPa (36 psi) 250 kPa (36 psi)
215/55R18 95H SKYACTIV-G 2.0, SKYAC-
TIV-G 2.5
250 kPa (36 psi) 250 kPa (36 psi)
SKYACTIV-G 2.5T 260 kPa (38 psi) 250 kPa (36 psi)
(Mexico)
Tire size Inflation pressure
Front Rear
215/65R16 98H 250 kPa (2.5 bar, 36
psi) 250 kPa (2.5 bar, 36
psi)
215/55R18 95H SKYACTIV-G 2.0, SKYAC-
TIV-G 2.5
250 kPa (2.5 bar, 36
psi) 250 kPa (2.5 bar, 36
psi)
SKYACTIV-G 2.5T 260 kPa (2.6 bar, 38
psi) 250 kPa (2.5 bar, 36
psi)
Specifications
Specifications
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Temporary spare tire
(U.S.A. and Canada)
Tire sizeInflation pressure
T135/80D17 103M 420 kPa (60 psi)
(Mexico)
Tire sizeInflation pressure
185/65R16 93M
* １320 kPa (3.2 bar, 46 psi)
195/55R17 92M
*2320 kPa (3.2 bar, 46 psi)
*1SKYACTIV-G 2.0*2 SKYACTIV-G 2.5, SKYACTIV-G 2.5T
Lug nut tightening torque
When installing a tire, tighten the lug nut to the following torque.
108―147 N·m (12―14 kgf·m, 80 ―108 ft·lbf)
▼Fuses
Refer to Fuses on page 6-35.
Specifications
Specifications
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