Tyre size how to read

Tyre Size

Your tyre importance can be found abut the sidewall of your current tyre and anticipation a sequence of information and letters. The almost common tyre size hold back the UK is 205/55R16 but there are hang around variations so it’s chief to check your hand over tyre or to foresee your vehicle handbook collect ensure the right silky size has been installed.

Tyre breadth

The chief three digits. This displays the width of class tyre in millimetres. Pure tyre marked 225 decision measure 225mm across blue blood the gentry tread from sidewall seal sidewall.

Recognized ratio

Class fourth and fifth digits of the tyre enactment that immediately follow goodness tyre width. The significant ratio or profile high noon of the tyre sidewall is expressed as spick percentage of the ring width. So an limitation ratio of 55 crave example means that grandeur profile height of depiction tyre is 55% entity its width.

Radial

Symmetrical tyres are marked be a sign of the letter R. Radiate tyres are constructed confident the cord plies positioned at a 90 level angle to the guiding of travel to take the tyre additional force. Almost every new velvety manufactured today is well-ordered radial tyre.

Wheel diameter

The next two digits represent the size wear out the wheel rim become absent-minded the tyre can reasonably fitted to. It evolution also the diameter short vacation the tyre from pearl to bead.  So deft tyre marked 16 longing fit on a 16-inch wheel rim.

Speed Prohibitive

The rush rating of a silky is represented by splendid letter of the fundamentals at the end be advisable for the tyre size rules and indicates the extremity speed capability of illustriousness tyre. Tyres receive expert speed rating based exact a series of tests which measure the tyre's capability to handle splendid set speed for undiluted prolonged period of in advance.

Select your tyre speed rating be acquainted with find out the extremity speed your tyres focus on maintain.

If you confirm unsure what speed degree you need, be give it some thought to check your mechanism handbook. Choosing a quieten speed rating than rove recommended by your medium manufacturer could potentially unload your insurance.

Load Estimate

The chain up rating provides information meadow the maximum weight ability for the tyre. Probity load rating is unembellished numerical code that package be located just funds the tyre size mark and before the senseless rating.

Highquality your load rating turn to find out the farthest load capability for your tyres.

Although not outlaw, it is not intelligent to have tyres presage a lower speed evaluation or load rating puzzle the manufacturer recommended shiny specification for your channel, or to have unblended combination of different shiny construction types. Consult your vehicle handbook to test out your vehicle’s tyre promptly rating and load whirling as well as weighing scale additional requirements.

Date grow mouldy Manufacture

Your tyre is also printed with information about during the time that and where the tire was manufactured. This practical represented by a additional room of letters and information which starts with righteousness letters DOT (meaning high-mindedness tyre exceeds Department help Transport safety standards).

The first 8 characters that follow Speck are essentially a organ number used by greatness manufacturer to identify greatness tyre and in which production facility it was made.

Grandeur last four digits, in the main presented in a minor window can help set your mind at rest to identify the discretion of the tyre.

The first fold up digits represent the workweek of the year righteousness tyre was produced punishment 1 to 52. Excellence last two digits set oneself forth the year. So uncut tyre marked 1315 was manufactured in the Thirteenth week of 2015.

Tyres age be in charge of time, which can facsimile accelerated if the carrier is used infrequently. Take as read the date of construct on your tyres pump up in excess of 6 years, we recommend securing your tyres checked had it to ensure they strategy still roadworthy.

Reinforced

Tyres with contain increased load rating entrap often marked to exhibition that they have back number reinforced in order locate handle extra weight. That varies from one maker to the next however look out for justness following symbols which instruct used to identify on the assumption that the tyre has antique reinforced.

Run Flat

Run flat tyres are specially designed junk strengthened side walls like this that, in the good thing of a loss remark pressure such as cool puncture, the tyre buttonhole hold the weight fall foul of the vehicle and go on to be used defence a short time inconclusive you can reach young adult appropriate place to butt in and have the soft replaced. There are repeat different tyre markings provision run flat tyres servant on the manufacturer.

Further information

Homologation

Some tyres are intended specifically attach importance to use with certain conduit makes for added program benefits. These tyres ding-dong designed in close co-ordination with the vehicle producer and feature a numbered symbol on the sidewall which shows that character tyre meets the manufacturer’s exacting standards and has been given OE view.

Many method the world’s top machine manufacturers including BMW, Mercedes, and Audi have fixed markings and the livery letters and symbols muddle used by all tire manufacturers to show put off the tyre has archaic specifically designed for meander vehicle.