Tyre marking

The majority of producers use standard marking for tyres.

Basic information is given on the tyre sidewall, with the following brief data on the size, main technical characteristics, technology, production date, producer country etc.

Type and Size

The main parameter you need to pay your attention to is an appropriate size of the tyre for your car. The numeric designation of the size on the sidewall of the tyre looks like this “205/55R16”. As a rule, for each vehicle brand optimal sizes are recommended; there can be several of them and they are interchangeable.

205/55R16

205 – the width of tyre section, specified in millimeters

55 — The ratio between the height of the tyre section and its width, specified in per cents

R — Alphabetical code designating the type of the tyre. R stays for tyres with the radial carcass

16 — Tyre diameter at rim seat, corresponds to the rim diameter of the wheel disk, specified in inches

Parameters of indices

There are two indices shown on the tyre: speed rating and load index. E.g. for marking “205/55R16 98W”

98 stands for load index per a wheel

W stands for the maximum speed indication

 

Tables for speed ratings and load indices

Speed ratings
Rating Q R S T H V W Y ZR
km/h Up to 160 Up to 170 Up to 180 Up to 190 Up to 210 Up to 240 Up to 270 Up to 300 Higher than  240

 

Load indices
Index kg Index kg Index kg Index kg Index kg Index kg Index kg
68 315 69 325 70 335 71 345 72 355 73 365 74 375
75 387 76 400 77 412 78 426 79 437 80 450 81 462
82 475 83 487 84 500 85 515 86 530 87 545 88 560
89 580 90 600 91 615 92 630 93 650 94 670 95 690
96 710 97 730 98 750 99 775 100 800 101 825 102 850
103 875 104 900 105 925 106 950 107 975 108 1000 109 1030
110 1060 111 1090 112 1120 113 1150 114 1180 115 1215 116 1250
117 1285 118 1320 119 1360 120 1400 121 1450 122 1500 123 1550

 

Symbols you can encounter when decoding the marking on car tyres:

Winter — winter tyres

Rain, Aqua, Water or symbol of an umbrella mean high efficiency of  the tyres on a wet road

AS (All Season) — all-weather tyres

M+S (Mud+Snow) – all-season tyres efficient when driving on slush (mud and snow mash)

Three-peak mountain snowflake – a symbol of a snowflake on the three-peak mountain background means the enhanced security and high steerability characteristics. These tyres are capable of coping with their tasks on the most difficult surfaces: on ice-covered stretches of the road and thick snow cover.

Studless – winter non-studded tyres or friction tyres

Stud, Studded – studded or studdable winter tyres

Left/Right – indications for obligatory mounting on the right or left side of the car

Inside/Outside – this marking designated the inside/outside side of the tyre with the assymmetric tread pattern

TL, Tubeless– a tyre without an inner tube

С/Cargo — tyres for light trucks

Performance, High Performance – high-performance, high-speed tyres

Runflat, RunOnFlat, RFT, SSR, ZP – this marking is used to show that the tyre was manufactured by a special technology, which in case of a puncture allows you to drive up to150 km on a flat tyre

SL (Standart Load) — tyres for ordinary loads

XL (Extra Load) — tyres for high loads

RF — (Reinforced) — tyres of reinforced design

TWI — Tire Wear Index —— tread wear indicator  – a section bearing information showing the degree of tyre tread wear

Colour stripes on tyres  —  do not carry any information on decoding wheel markings. This marking is done on the manufacturer factory or in the warehouse to make the search for the required types of tyres easier.

Mission of Wolf Tyres

Wolf Tyres manufactures passenger car tyres which are capable to cope with trecherous driving conditions and to provide safe transportation, and which are intended for installing on passenger cars, crossovers and light trucks.

 

 

 

 

Leave a Reply

Your email address will not be published. Required fields are marked *