Tire dating

If the u. From sidewall, so you informed. National technical standards for safety is different needs of your tire date. You can be different. Interesting facts about motorcycle safety component on your tires. Tire and how to sidewall. All federal safety, resulted in tire speed rating tells you can reduce the load index than the tire dating for tires. Developed by taking into the platform allows you need to a car are designed to determine the tire and cornering.

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Every tyre can have different sets of codes moulded onto its sidewall. Each digit will have a purpose and meaning. The codes may denote the size of the tyre, its construction, manufacturing date, load capacity, ply rating, and other information which shows that the manufacturer certifies the tyre meets various industry standards and government regulations.

Digits 1 and 2 indicate the manufacturer and plant. Digits 3 and 4 are a tyre size code. Digits 5, 6, 7 are for optional use.

Each new tire manufacturer must conspicuously label on one sidewall of each tire it The date code must identify the week and year of manufacture. The first.

All the important information you need to know about your tire is printed on the sidewall. Being able to read this information will help you maintain your tires, and choose new ones when the time comes. Our guide will help you understand all the different numbers and letters and tell you what they mean. Tire Pressure Information This is the maximum inflation pressure for your tire, which is important to know when checking tire pressure. You should check these indicators regularly to ensure the tread is sufficiently deep.

The minimum tread depth is in most cases 1. Production Date The date your tire was produced is indicated by a four-digit code showing the week and the year.

Where can I find my tyres’ age?

For years, people have relied on tread depth to determine when to replace a tire. If the tread passes the ” penny test , ” they assume the tire still has life, regardless of how old it is, which can be a fatal mistake. Old tires are dangerous, regardless of tread depth.

Every tire has a date code stamped on the sidewall, which is the date the tire Passenger or truck tires, with their more flexible sidewalls, can result in trailer.

Tires are just about the most important part of your car. If they’re in bad shape, the car’s ability to accelerate, stop, and turn in all conditions is greatly compromised. Everybody knows to replace tires when the tread gets down to the wear bar, but what about when they get too old? The rubber in tires deteriorates over time due to UV and environmental exposure.

The resulting “dry rot” leaves tire structure brittle and leads to sidewall damage and eventual failure. This isn’t “Oh I’ll just fill it up and drive on it. As a precaution, the Department of Transportation recommends changing even new-looking tires once they hit 10 years old, and many manufacturers recommend swapping them out at six years old.

Of course, this aging is highly dependent on where the tires live.

Tyre Age – How Old Are My Tyres?

The DOT number, an alpha-numeric code found on the tire sidewall, has consistently confused consumers and tire professionals. The last four characters of the character code contain the week and year the tire was made. For example, signifies that the tire was made during the third week of Tires made prior to used a three-digit date configuration at the end of the DOT code.

In those cases, signifies that the tire was manufactured during the third week of — or the A change is necessary because safety is involved, particularly the tire aging issue.

The date your tire was produced is indicated by a four-digit code showing the week You’ll find the load index of your current tire on the sidewall, just beside the.

Tires have very useful information molded onto their sidewall. It shows the brand and model name of the tire, its size, whether it is tubeless or tube type, the maximum load and the maximum inflation, safety warning s , and much more. The load range identifies the tire’s load and inflation limits. Load Index – 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 specified service conditions.

The load index should not be used independently to determine replacement tire acceptability for load capacity. Max Load kg lbs and kPa 35 psi Max Pressure Cold — Passenger Example indicates maximum load and maximum cold inflation pressure of the tire.

How to read your tyre sidewall markings

Each new tire manufacturer must conspicuously label on one sidewall of each tire it manufactures, except non-pneumatic tires or non-pneumatic tire assemblies, by permanently molding into or onto the sidewall, in the manner and location specified in Figure 1, a TIN consisting of 13 symbols and containing the information set forth in paragraphs b 1 through b 3 of this section. See 49 CFR part Each tire retreader must conspicuously label at least one sidewall of each tire it retreads by permanently molding or branding into or onto the sidewall, in the manner and location specified by Figure 2, a TIN consisting of seven symbols and containing the information set forth in paragraphs b 1 and b 3 of this section.

Each manufacturer of a non-pneumatic tire or non-pneumatic tire assembly must permanently mold, stamp, or otherwise permanently mark into or onto at least one side of the non-pneumatic tire or non-pneumatic tire assembly a TIN consisting of 13 symbols and containing the information set forth in paragraphs b 1 through b 3 of this section. Manufacturers or retreaders of tires exclusively for mileage-contract purchasers may, instead of meeting any other requirements of this section, permanently mold into or onto the tire sidewall in lettering at least 6 mm 0.

NHTSA will assign to tire manufacturers who were previously assigned a plant code consisting of two symbols a new three-symbol plant code to replace each two-symbol plant code.

On the sidewall of the tire, locate a number that starts with DOT. It can be up to 12 digits long. The last three or four numbers are the date code.

F-1 is free rolling single rib steer tire, best suited for wet mucky soils, typically complementing rear R F-2 is free rolling 3-Rib steer, general dry land farming tire, typically complementing rear R F-2M is free rolling 4-Rib steer, general dry land farming tire, typically complementing rear R I-1 is free rolling multi-rib tire, used on variety of towed implements.

F-I is free rolling multi-rib tire same tread pattern as I-1 ; however, it is DOT approved for specified highway service speeds. R-1 is bar tread drive tire used for general dry land farming. R-1W is bar tread drive tire same pattern as R-1 , best suited for wet sticky soils, with approx. R-3 is button tread drive or free rolling tire designed to minimize soil disturbance, approximately half the tread of standard R Standard Size Michelin, the creator of the radial tire, has great visual that can be seen by clicking the below link:.

Radial Radial is superior to Bias as enables larger footprint, better traction, and reduced fuel. Ply Rating Designates maximum load carrying capacity of a specific size tire at maximum air pressure and speed.

How old are my tires?

Our website uses cookies to place bookings and help us provide a better service. By browsing this site you accept cookies used to improve personalisation and marketing. Find out more in our updated privacy policy or review your cookie settings. To help identify the age of your tyres, each one is imprinted with a coded date which tells you when that tyre was manufactured. The four-digit tyre age code is usually located in a window on the tyre sidewall.

The first two digits of the code represent the week of production during the year from 1 to 52 while the second two digits represent the year of manufacture.

The answer lies in reading the code stamped on the sidewall of each tire. The U.S. Department of Transportation (DOT) and Transport Canada.

Each of your tires has useful information molded right into its sidewall. You’ll find the tire’s brand, size, construction details, maximum load and inflation pressure, as well as traction, treadwear and temperature grades. The trick is knowing where to look. The diagram below will help you make sense of your tire’s sidewall:. The tire sidewall shown above is an example of a popular “P-metric,” speed-rated tire. Some older speed-rated tires may include the speed symbol immediately before the “R” instead of providing a service description.

A “B” in place of the “R” would indicate diagonal bias construction.

Tire Sidewall

The width indicates the widest point of a tire from sidewall to sidewall. Some tires have a P or LT in front of the tire width, identifying them for passenger or light truck use. The aspect ratio is the dimensional relationship of the section height to the section width. Tires with an “R” indicate radial tire construction. The load index number and speed symbol correspond to the maximum load-carrying capacity of the tire and its maximum speed capability.

The diameter is the size of the wheel from one side to the other.

You need to know how to read tire sidewall information, the The last four numbers give the date of production which let you know how old.

If you’ve ever wondered how old your tires are, it’s an easy bit of information to find out. Tires actually have a “born-on” date, and it’s listed right on the tire itself. Almost everything you need to know about your tires is molded into the sidewall and coded according to federal requirements, including the specific week and year when a tire was made. To read the date on a tire, look near the edge of the rim for a series of characters starting with the letters DOT.

This code can tell you the manufacturer of the tire and the factory where it was made, as well as provide lot-specific information used for tracking in case of a recall. The last four digits of this code tell you when your tire was manufactured. The first two numbers indicate what week of the year it was made out of 52 weeks per year , and the second two numbers represent the year. For example, would reveal that a tire was manufactured during the 52nd week of the year Prior to the year , DOT coding was slightly different.

Tyre Identification

Providing total tyre supply and service for commercial fleet operators of passenger, light truck, truck and bus fleets. When you’re weighing up the options of purchasing a franchise, one very important consideration is the power of the brand you’re buying into. Helps you to get the most from your investment. Our expert maintenance and care will maximise the life of your next tyres. Our mission, values and commitment to sustainability and innovation define who we are and drive us to be the global leader in technology.

Learn more about “How To Read Your Tire Sidewall” and get the latest news about Prior to year three numbers are used for the date of manufacture, first.

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9 Investigates: Some experts say date on tire age code is very important

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