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Tyre marking

DATE

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
RatingQRSTHVWYZR
km/hUp to 160Up to 170Up to 180Up to 190Up to 210Up to 240Up to 270Up to 300Higher than  240
Load indices
IndexkgIndexkgIndexkgIndexkgIndexkgIndexkgIndexkg
68315693257033571345723557336574375
75387764007741278426794378045081462
82475834878450085515865308754588560
89580906009161592630936509467095690
96710977309875099775100800101825102850
10387510490010592510695010797510810001091030
1101060111109011211201131150114118011512151161250
1171285118132011913601201400121145012215001231550

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.

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