FAQs

How to Read Your Tire Size?

tyre-information
infomation-on-tyre
SPEED SYMBOL AND MAXIMUM CHART
  • Q
    99 MPH
  • R
    106 MPH
  • S
    112 MPH
  • T
    118 MPH
  • U
    124 MPH
  • H
    130 MPH
  • V
    130+ MPH
  • W*
    149+ MPH
  • Y*
    168 MPH
  • Y**
    168+ MPH
  1. Passenger Car Tire – A ‘P’ or no letter at all indicates a passenger car tire.
  2. Width (Millimeters) – This is the section width of your tire, in millimeters, measured from sidewall to sidewall.
  3. Aspect Ratio (height/width) – This is the ratio of the height of the tire sidewall, expressed as a percentage of width. An aspect ratio of 60, for example, indicates that the tire’s sidewall height is 60% of its width.
  4. Radial (construction) – This tells you that the tire is a radial construction. Almost every new tire built today is a radial tire.
  5. Diameter (inches) – This is the diameter in inches of the rim of the wheel that the tire has been designed to fit on.
  6. Load Rating – This is the load index of a tire, also called load rating, and corresponds to the maximum weight the tire is designed to carry. It can be found on the tire sidewall, next to the diameter. For safety reasons, you should never overload your tires or choose replacement tires with a load index lower than your vehicle manufacturer recommends.
  7. Speed Rating – The speed rating is the maximum legal speed for a tire when it is correctly inflated and in use under load. You will find your tires speed rating printed on the sidewall, and represented by a letter. A tire with a speed rating of V, for example, has a maximum speed of 240 km/h. When buying replacement tires, it is essential to match their speed rating with the speed capabilities of your vehicle.

What Does The Load Index Mean?

The Load Index is a numerical code associated with the maximum load a tire can carry at the speed indicated by its Speed Symbol under service conditions specified by the tire manufacturer.

LI
TLCC(kg)
  • 62
    265
  • 64
    280
  • 66
    300
  • 68
    315
  • 70
    335
  • 72
    355
  • 74
    375
  • 76
    400
  • 78
    425
  • 80
    450
  • 82
    475
  • 84
    500
  • 86
    530
  • 88
    560
  • 90
    600
  • 92
    630
  • 94
    670
  • 96
    710
  • 98
    750
  • 100
    800
  • 102
    850
  • 104
    900
  • 106
    950
  • 108
    1000
  • 110
    1060
  • 112
    1120
  • 114
    1180
  • 116
    1250
  • 118
    1320
  • 120
    1400
  • 122
    1500
  • 124
    1600
  • 126
    1700
  • 128
    1800
  • 130
    1900
  • 132
    2000
  • 134
    2120
  • 136
    2240
  • 138
    2360
  • 140
    2500
  • 142
    2650
  • 144
    2800
  • 146
    3000
  • 148
    3150
  • 150
    3350
  • 152
    3550
  • 154
    3750
  • 156
    4000
  • 158
    4250
  • 160
    4500
  • 162
    4750
  • 164
    5000
  • 166
    5300
  • 168
    5600
  • 170
    6000
  • 172
    6300
  • 174
    6700
  • 176
    7100
  • 178
    7500
LI
TLCC(kg)
  • 61
    257
  • 63
    272
  • 65
    290
  • 67
    307
  • 69
    325
  • 71
    345
  • 73
    365
  • 75
    387
  • 77
    412
  • 79
    437
  • 81
    462
  • 83
    487
  • 85
    515
  • 87
    545
  • 89
    580
  • 91
    615
  • 93
    650
  • 95
    690
  • 97
    730
  • 99
    775
  • 101
    825
  • 103
    875
  • 105
    925
  • 107
    975
  • 109
    1030
  • 111
    1090
  • 113
    1150
  • 115
    1215
  • 117
    1285
  • 119
    1360
  • 121
    1450
  • 123
    1550
  • 125
    1650
  • 127
    1750
  • 129
    1850
  • 131
    1950
  • 133
    2060
  • 135
    2180
  • 137
    2300
  • 139
    2430
  • 141
    2575
  • 143
    2725
  • 145
    2900
  • 147
    3075
  • 149
    3250
  • 151
    3450
  • 153
    3650
  • 155
    3875
  • 157
    4125
  • 159
    4375
  • 161
    4625
  • 163
    4875
  • 165
    5150
  • 167
    5450
  • 169
    5800
  • 171
    6150
  • 173
    6500
  • 175
    6900
  • 177
    7300
  • 179
    7750

What Does The Speed Symbol Mean?

The Speed Symbol indicates the maximum speed at which the tire can carry a load corresponding to its Load Index under service conditions specified by the tire manufacturer.
Correlation Between Speed Symbol(SS) and Maximum Speed

SPEED SYMBOL (SS)
MAXIMUM SPEED (KM/H)
  • A1
    5
  • A3
    15
  • A5
    25
  • A7
    35
  • B
    50
  • D
    65
  • F
    80
  • J
    100
  • L
    120
  • N
    140
  • Q
    160
  • S
    180
  • U
    200
  • V
    240
  • Y
    300
  • ZR
    above240
SPEED SYMBOL (SS)
MAXIMUM SPEED (KM/H)
  • A2
    10
  • A4
    20
  • A6
    30
  • A8
    40
  • C
    60
  • E
    70
  • G
    90
  • M
    130
  • P
    150
  • R
    170
  • T
    190
  • H
    210
  • W
    270
  • (Y)
    300

Understanding The Dot Code


DEPARTMENT OF TRANSPORTATION TIRE SAFETY STANDARDS

The “DOT” symbol certifies the Tire manufacturer’s compliance with the U.S. Tires made in the United States have the DOT serial number located on the inside sidewall near the rim.

safety-and-standard

Understanding The Sidewall Marking On The Tire

sidewall

  1. Manufacturers Name & Brand
  2. Commercial Name (Pattern)
  3. Tire Size Designation.
  4. The word ‘radial’ to identify radial ply tires. R in size marking also indicates radial ply tires
  5. The word ‘tubeless’ to identify tubeless tires (or ‘tube type’ (optional) where appropriate)
  6. The ‘E’ certifies that the tire complies with the dimensional, performance and marking requirements of ECE Regulation 30.
  7. Service description – ‘Load Capacity Index’ and the ‘Speed Category Symbol’, for example ’79V‘
  8. TWI – is the abbreviation of ‘Tread Wear Indicator’ and may be found in the shoulder or upper sidewall part of some tires.
  9. Directional pattern tires.
  10. DOT – is the abbreviation of (U.S.) ‘Department of Transportation’
  11. DM DF O5Y XXXX (Factory Code & date of Production)
  12. A statement of ‘maximum load’ and ‘maximum pressure’
  13. Cord materials used in the tire construction and the number of plies
  14. Country of origin
  15. Uniform tyre quality grading (UTQG)

Proper Inflation

A tire without proper inflation does not work as a tire at all.
A tire only functions when it is supported by the air inside.
All its characteristics are related to inflation pressure.
Therefore it is very important to maintain tire inflation properly.

CORRECT INFLATION
even-contact-pressure
UNDER-INFLATION
uneven-contact-pressure
OVER-INFLATION
uneven-contact-pressure-01

How To Maintain Your Tire?

6 STEPS FOR SAFETY & MAINTENANCE

Considering how important tires are for a smooth and safe drive, it is surprising just how quick and it is easy to care for your tires. By following our tire care tips, and conducting simple regular checks, you will not just save time and money, but more importantly, stay safe on the road

01. Do A Daily Visual Check

  • Check that all tires have about the same inflation pressure.
  • Check the sidewalls for cracks or unusual bulges.
  • Check for and remove any foreign objects (e.g. stones or nails) that could puncture you tire.

02. Do A Monthly Tire Pressure Check

  • Use a proper tire guage to measure tire pressure.
  • Check pressure and inflate only when the tires are cold. (a hot tire will show inaccurate reading due to inflation)
  • It takes as long as 4 hours for a tire to cool down so it’s best to check tire pressure first thing in the morning.
  • Your vehicle tire pressure chart can usually be found on the driver’s door frame or in your owner’s handbook.
  • Don’t forget to also inflate your spare tire.

03. Check for Irregular Wear

This is when one section of the tire is more worn than the rest and occurs when:

  • Tires are not uniformly inflated.
  • Tires are not balanced.
  • Wheels are out of alignment.

04. Rotate Tires Every 5,000km

  • Visit a reputable tire shop or garage for tire rotation.
  • Check your owner’s handbook for rotating sequence.
  • Have your tires balanced at the same time.

06. Check the Tread Depth Indicator

  • All tires come with a tread depth indicator. (see diagram)
  • When the indicator is flushed with the rest of the tread (usually about 1.6mm), it is time to change the tire.

07. Check the Wheel Alignment

  • Misaligned wheels cause tires to wear more quickly and irregularly, and prevents the vehicle from running or braking in a straight line. The suspension and steering components will also be subjected to extra stress.
  • It is a good idea to have your wheels aligned by a computerised alignment machine. A reputable workshop should have the wheel alignment specifications of your vehicle model.
key-factors
tyre-rotation
tread-depth-indicator

Breaking Your Tire In

All new Dunlop tires have a smooth surface after production, which will gradually wear away through moderate breaking-in of tires. Sudden acceleration and braking, and hard cornering should be avoided until the breaking-in process has been completed. This process also helps build the tire up to its maximum grip level.

For more information, and to get the best tires for your vehicle, visit a Dunlop Tire Center today.

Why do your tires wear out so quickly?

Premature tire wear can be caused by a number of factors such as improper inflation, improper wheel alignment, rough driving conditions and infrequent tire rotation. Visit a Dunlop Tire Center to get the best care for your tires Dubai has to offer!

What tires are best for a desert climate?

Tires with a higher speed rating are best for a desert climate, since higher speeds are related to heat generation in the tire. Tires with a higher speed rating can therefore withstand higher temperatures.

So, be sure to purchase the highest rated Dunlop Tires if you live in Saudi Arabia or Egypt, to ensure that they last you longer! Visit your nearest Dunlop Tires dealer today.

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